The 40-inch KDL-40S4100 is one of Sony's lowest-priced HDTVs with full 1080p screen resolution. Compared to 720p screens, 1080p delivers around twice the pixel count, for more detailed images. Whether you receive your high-def content from over-the-air broadcasts, cable, or satellite TV, most HD programs employ the 1080i format. To see all of the detail in those programs, you need a 1080p screen.

Built-in HD reception
This TV has built-in tuners for your local digital and analog broadcasts, so you'll get great over-the-air reception both before and after the digital switchover in 2009 (antenna required). Plus, a "QAM" cable TV tuner lets cable subscribers watch unscrambled channels without a set-top box — including HD channels in many areas.

Versatile inputs keep you ready for the latest HD sources
The KDL-40S4100's "jack pack" includes three HDMI connections that will ensure maximum picture quality as high-def formats evolve. Sony calls them 24p True Cinema capable, which means they can accept the 1080p/24 output from a Blu-ray player. Most movies are originally shot at 24p (24 frames per second), so this feature lets you see video in its most flawless form. One HDMI input is located on the side of the TV so it's easier to hook up an HD camcorder or video game console.

Learn about the ins and outs of HDMI connections at the Crutchfield Learning Center.
Shop our selection of HDMI cables.

Tip: For a list of over-the-air digital TV stations you can receive, as well as antenna recommendations for your location, enter your zip code in AntennaWeb's mapping tool.

Visit our Sony HDNA showcase

FREE scheduled delivery to your door: This item will be delivered to the door of your house or apartment. Available to physical addresses in 50 United States only. Limited delivery available to Alaska and Hawaii for $99 per item — call 1-888-955-6000 for more details. Sorry, we can't ship to P.O. Boxes or freight forwarders. Delivery takes 5-7 business days once your order has been processed. Extra charges may apply to items that must be carried up more than 5 flights of stairs. Allow extra time for delivery to remote addresses.

Product Highlights:

  • 40" screen (measured diagonally)
  • widescreen 16:9 aspect ratio
  • high-gloss black finish
  • built-in digital (ATSC) and analog (NTSC) tuners for over-the-air TV broadcasts (antenna required)
  • built-in QAM cable TV tuner receives unscrambled programs without a set-top box (cable service required)
  • 1920 x 1080 pixels
  • 8-millisecond pixel response time
  • 2500:1 contrast ratio
  • PC picture-in-picture (main PC image with TV inset)
  • built-in stereo speakers (10 watts x 2)
  • remote control
  • picture settings memory for each video input
  • 7 A/V inputs, including:
    • 2 composite video (1 rear, 1 side)
    • 1 S-video
    • 2 component video (accepts signals up to 1080p)
    • 3 HDMI (2 rear, 1 side) — accepts signals up to 1080p (60Hz, 24Hz)
  • PC input: analog RGB (D-Sub 15-pin)
  • RF input for antenna/cable signals
  • optical digital audio output for Dolby® Digital
  • Energy Star® 3.0 compliant — see our article on TV power consumption for more info about this and other testing standards
  • detachable stand (stand "footprint" is 16-1/8"W x 10-7/8"D)
  • wall-mountable (bracket not included)
  • 39-1/4"W x 25-5/8"H x 4-3/4"D (27-1/8"H x 10-7/8"D on stand)
  • weight: 50.1 lbs. with stand; 43.9 lbs. without stand
  • warranty: 1 year parts & labor — in-home service or pick-up for service
  • Our 60-day money-back guarantee

Sony KDL-40S4100 Reviews

Average Customer Review:

8 reviews
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beautiful sony HDTV!

Written By ERNIE, round lake, il on Thursday, April 09, 2009

Beautiful tv! this is my first sony 40" HDTV, on SD definition looks beautiful,but on HD definition looks exellent, i hook up my panasonic home theatre to this tv and i connect the HDMI cable, the dvd movies look like blue ray discs movies on the screen, "exellent picture" . easy to set up, big screen, perfect for a living room and bedroom. Im 100% satisfaded so i highly recomended this tv to eneyone GREAT PRICE! GREAT TV! GREAT PICTURE! THANKS TO CRUTCHFIELD!. BUY IT!

Sony KDL-40S4100

Written By Jenna, Chicago, IL on Tuesday, April 07, 2009

Crutchfield Customer Review (What's this?)

The TV came within a week of ordering it, and its beautiful! We use it for PS3, Blue Ray movies, and Xbox360 and love how all of them look on it. We highly recommend this TV.


Written By Glenn, Nolensville, TN on Tuesday, March 03, 2009

Crutchfield Customer Review (What's this?)

Fast shipping and brought it right to the spot I installed it. Wonderful
picture and looks great above the fireplace. We have really enjoyed this TV
and I am confident you will as well.

Great team

Written By Terry, Plattsburgh, New York on Thursday, January 22, 2009

Crutchfield Customer Review (What's this?)

SONY and CRUTCHFIELD makes a great team. The HDTV is absolutely stunning and Crutchfield shipped it out fast. That plus lowest price I could find makes me a very satisfied customer.

Great TV, no Cable box required for HD channels

Written By lakings91, Woodland Hills, CA on Tuesday, December 30, 2008

Crutchfield Customer Review (What's this?)

As long as your cable co providing unscrambled HD ( local broadcast in HD - like ABC, CBS, FOX, NBC and PBS) - 40S4100 is all you need to watch.
I have not tried it with HDMI, but for the home office - it a very capable set.
We are happy!

exceeded expectations

Written By Pasha, Colchester, VT on Tuesday, December 23, 2008

I am very, very pleased with the set.
- very good (low) black level for an LCD
- none of the bluishness in the shadow areas that's noticeable with other LCDs
- PC input: perfect, pixel-for-pixel mapping through the VGA (15-pin) input. You can use this set as an AMAZING computer monitor. The image is dead-solid with no shimmering (auto adjustment works the same way as on regular LCD PC monitors)
- non-reflective (not shiny) screen reduces reflections from windows and other light sources
- many different adjustments to make the picture (for example, you can set sharpness to 0, making for a very smooth, film-like image for movie-watching)

Cons (only one, and I am being very picky):
- very, very slight light leakage in the two upper corners in the form of two bands that project about 10 inches into the screen at 45 degree angles. But they're only noticeable in complete darkness.
- no gamma adjustment (may need to tweak that in your source to get a perfectly-calibrated image). Turning the picture down and the brightness up reveals shadow detail without raising the overall black level.

- I am keeping it and recommend without reservations.

Sony KDL-40S4100

Written By Sheila, Coral Springs Fl. on Thursday, September 18, 2008

Crutchfield Customer Review (What's this?)

I bought this tv for my family room and upgraded to hd cable. Picture is fantastic and combined with surround sound gives you a real home theater feeling. I highly reccomend it.

execellent product and customer service

Written By mark, lancaster ny on Sunday, September 14, 2008

Crutchfield Customer Review (What's this?)


Hands-on research

What's in the box?

Download owner's manual

  • 40" Widescreen LCD TV
  • Pedestal stand
  • Wireless remote control (RM-YD025)
  • 2 "AA" batteries
  • 6.5 AC cord
  • 4 Machine screws with a flat washer and lock washer installed on each screw
  • Cable tie
  • Operating Instructions
  • Quick Setup Guide
  • "Assembling the Table-Top Stand" instructions
  • Attaching table-top stand diagram
  • "Installing the Wall-Mount Bracket" sheet
  • Warranty sheet
  • "Notices and Licenses For Software Used In This Television" sheet
  • Online product registration sheet
  • "Digital Broadcast Reception" notice

Features and Specs

Screen Size 40"
Screen Design Flat
Aspect Ratio 16:9
Screen Resolution (pixels) 1920 x 1080
Screen Refresh Rate 60 Hz
Backlighting Type Fluorescent
3D ---
Instant Internet Movie Streaming ---
Wi-Fi No
MHL-compatible ---
Picture In Picture PC
Parts Warranty 1 Year
Labor Warranty 1 Year
Type of Warranty Service In-home
Total Video Inputs 7
HDMI Inputs 3
Component Video Inputs 2
Composite Video Inputs 2
RF Inputs 1
PC Input Yes
Ethernet Port No
USB Port Yes
Optical Digital Audio Output 1 Rear
Coaxial Digital Audio Output None
Analog Audio Output 1 Rear
Power Consumption
Estimated Yearly Electricity Use (EnergyGuide) Not Given
Estimated Yearly Energy Cost (EnergyGuide) Not Given
Dimensions & Mounting Information
Width (inches) 39-1/4
Height with Stand (inches) 27-1/8
Height without Stand (inches) 25-5/8
Depth with Stand (inches) 10-7/8
Depth without Stand (inches) 4-3/4
Stand Width (inches) 16-1/8
Weight with Stand 50.0625 lbs
Weight without Stand Not available
Wall Mountable Yes
Wall Bracket Included No
Pedestal Stand Assembly required

Product Research

Mounting Options
Inputs and Outputs Notes


NTSC/ATSC/QAM Tuners: The TV is equipped with an analog NTSC tuner, a digital ATSC/8VSB tuner, and a digital QAM tuner for receiving unscrambled digital cable channels. It is not CableCARD compatible. You do not need to connect an external HDTV set-top box in order to receive High-Definition programming.

Native Resolution: The KDL-40S4100 has a full HD native resolution of 1920 x 1080 with over 2 million pixels (more than twice the pixels of 720p HDTV). The TV's three HDMI inputs can accept 480i, 480p, 720p, 1080i, 1080p and 1080/24p signals, and the two component video inputs can accept 480i, 480p, 720p, 1080i and 1080p signals. All video signals from standard definition and high definition are upconverted to 1080p.

BRAVIA Engine Full Digital Video Processor: This television uses Sony's BRAVIA Engine full digital video processor for crisp and clear images. Several special picture enhancement technologies are integrated into the processor to create better gradations and details, enhance contrast, dynamically improve color, and reduce image flicker.

24pTrue Cinema (24p Input Capability): Many movies are filmed at 24 frames per second (fps) and prime time TV programs are video taped at 24p. Seizing on an opportunity, some studios are taking a purist approach and encoding high definition video content such as Blu-ray Disc in 24p. Sony wisely takes advantage of this by including 24p input capability via HDMI on this television producing images that are smooth and natural looking.

Picture Mode: You can select one of the following picture modes:

  • Vivid: enhances picture contrast and sharpness
  • Standard: displays a standard picture for typical viewing environments
  • Cinema: used to view film-base content; suitable for viewing in a theater-like environment
  • Custom: allows you to store your preferred settings for Backlight, Picture, Brightness, Color, Hue, Color Temperature, Sharpness, and Noise Reduction

Screen Modes: You can choose from the following Screen Modes:

  • 4:3 Default:
    • Wide Zoom: Enlarges the center portion of the 4:3 picture proportionately, while the left and right edges of the screen are stretched to fill the screen
    • Normal: Displays the 4:3 picture in its original size with black bars at the left and right sides to fill the screen
    • Full: Stretches the entire 4:3 picture horizontally only to fill the screen
    • Zoom: Enlarges the entire 4:3 picture proportionately to fill the screen (useful for watching Letterbox movies)
  • 16:9 Wide Mode:
    • Wide Zoom: Enlarges the picture to fill the screen with minimal distortion
    • Normal: Displays a 4:3 picture in its original aspect ratio when the original source is 4:3
    • Full: Displays the picture at its original size
    • Zoom: Enlarges the picture proportionately, both vertically and horizontally
  • Auto Wide: Automatically changes screen settings base upon incoming video signal and content.

Screen Settings: The Sony LCD TV offers the following screen adjustments.

  • Vertical Center: allows you to adjust the vertical size of the picture when in Wide Zoom mode
  • Vertical Size: adjust the vertical size of a standard-definition picture
  • Display Area:
    • Full Pixel: displays the picture for 1080, 1080p or 1080/24p sources in its original size
    • Normal: displays the picture in its original size
    • -1/-2: enlarges the picture to hide the edges of the picture

CineMotion 3/2 Pulldown Processing: This function optimizes the display by automatically detecting film content and applying a reverse 3-2 pulldown process. Moving pictures will appear clearer and more natural-looking.

PC Compatible: The television can be used as a monitor for your PC through the TV's RGB HD-15 input or HDMI input. The TV supports the following PC resolutions - VGA, SVGA, XGA, WXGA, SXGA and HDTV. You can adjust Phase, Pitch, Horizontal and Vertical Position and Wide Mode of picture.

PC PIP Feature: While in PC input mode, PIP can be selected from the TV's Tools Menu. The PIP feature allows you to see both the PC input's image as well as your TV channels (RF Antenna/Cable input) simultaneously. The television's main window will display the PC input image, while the television's sub-window will display your television station's video content via the RF Antenna/Cable input.

Favorite Channel: This feature allows you to store and quickly access your favorite analog and digital channels.

Jump Function: This feature allows you to jump back and forth between two channels. The TV alternates between the current channel and the last channel that was selected.

Label Channels: This feature allows you to assign labels such as station call letter to the channel numbers. You can use up to seven characters.

Input Label: Each of the television's inputs (except PC) can be labeled with names (DVD, Cable Box, Satellite, Blu-ray, VCR, DVR, Game, Camcorder, PC or Skip) instead of video 1, video 2, video 3, etc. The Skip label is useful for inputs to which no equipment is connected. If you select Skip, the TV skips this input when you press the Input button of the remote.

Caption Vision/Info Banner: This feature allows Closed Caption and/or channel programming information to be displayed on the TV screen. You can choose from CC1, CC2, CC3, CC4, Text1, Text2, Text3 and Text4. Digital Channel's Closed Captions can be customized. You can select Text-type, Character-size, Character-style, Character-color, Character-opacity, Edge-type, Edge-color, Background-color and Background-opacity.

Sound Settings: The Sound Settings menu allow you to make the following adjustments:

  • Sound Mode: You can customize the bass and treble or use one of the three preset sound modes:
    • Dynamic: enhances both treble and bass
    • Standard: suitable for spoken dialogue
    • Clear Voice: suitable for spoken dialogue
  • Treble, Bass, Balance: You can individually set the treble, bass, and balance settings as desired.

Parental Control: You can select a viewing limitation based on the TV and movie ratings. Three presets are available (Child, Youth, and Y. Adult) or the limitation can be customized to specific industry ratings. The control is accessed and protected by a 4-digit password.

Channel/External Input Block: This feature allows you to block channels or external inputs regardless of program ratings.

Sleep Timer: The sleep timer switches the television off after a specified amount of time. The sleep timer can be set to 15, 30, 45, 60, 90, or 120 minutes.

Power Saving: This feature reduces the power consumption by adjusting the backlight brightness of the TV's screen. This also enhances the black level of the television. You can select from Low, High, Off and Picture Off.

PC Power Management: This feature automatically places the television in Standby mode when there is not signal input for more than 30 seconds.

Wireless Remote Control: The TV comes supplied with an IR wireless remote control (RM-YD025). The remote is designed for TV operation only.

Mounting Options

Tabletop Stand: The display comes supplied with a tabletop pedestal stand which must be attached using the supplied hardware. The television weighs 50.0625 lbs with the stand attached.

Optional Wall Mount Brackets: The stand can be removed, allowing you to wall-mount the TV using an optional wall-mount bracket. The TV has 4 threaded screw holes with a horizontal spacing of 11-3/4" (300mm) and a vertical spacing of 11-3.4" (300mm). The screw holes all accept M6 (6mm) screws. The TV weighs 43.875 lbs without the stand.

Inputs and Outputs Notes

HDMI: The KDL-40S4100 features 3 HDMI inputs (2 Rear/1 Side). The HDMI (High-Definition Multimedia Interface) terminals provide an uncompressed, all-digital audio/video interface. The HDMI 1 input also has left and right RCA audio jacks. With an HDMI-to-DVI cable, you can connect the TV to a DVI-equipped A/V component. When connecting to a DVI-equipped component, the RCA audio inputs are used and separate RCA audio cable must be connected.

Note: The HDMI input will accept 1080/24p, 1080p, 1080i, 720p, 480p, and 480i signals.

Component Video Inputs: The two component video inputs will accept 1080p, 1080i, 720p, 480p, and 480i signals.

PC Input (RGB): A 15-pin HD15 jack allows you to connect your personal computer to the display. There is also a corresponding stereo mini-jack (3.5mm) for the computer's audio signal.

Side Panel AV Inputs: For convenience, there is an A/V input on the left side panel of the TV. Included are stereo RCA inputs and a composite video input, as well as an HDMI input.

Analog Audio Outputs: These stereo RCA audio jacks allow you to listen to the TV's audio through your stereo system. In the menu you can set the output to Fixed (volume controlled by the receiver/amplifier) or Variable (volume controlled by the TV's remote control) operation.

Note: You must turn the TV speakers off in the menu in order for the audio outs to function.

Digital Audio Output: Optical digital output that connect to the optical digital input of your digital audio equipment that is PCM/Dolby Digital compatible. Dolby Digital Audio signal from the HDMI input will be output as PCM.

USB (Service) Port: For service use only.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.