Your search for 4k tv returned the following:

84" Ultra High Definition TV with "4K" resolution — 4 times the detail of 1080p

OUT OF STOCK

1 person says 

• 4K Ultra HD 3D TV (6 pairs of LG passive 3D glasses are included)
• 3840 x 2160-pixel screen resolution for 4 times the detail of 1080p
• "LED Plus" backlight with local dimming for excellent picture contrast and black levels

65" Ultra High Definition TV with 4K resolution — 4 times the detail of 1080p

IN STOCK

• 4K Ultra HD 3D TV (includes 4 pairs of Sony passive 3D glasses)
• 3840 x 2160-pixel screen resolution for 4 times the detail of 1080p
• Dynamic Edge LED backlight with local dimming for excellent picture contrast and black levels

55" Ultra High Definition TV with 4K resolution — 4 times the detail of 1080p

IN STOCK

• 4K Ultra HD 3D TV (includes 4 pairs of Sony passive 3D glasses)
• 3840 x 2160-pixel screen resolution for 4 times the detail of 1080p
• Dynamic Edge LED backlight with local dimming for excellent picture contrast and black levels

3D Blu-ray player with Wi-Fi® and 4K upconversion

• plays 3D and standard Blu-ray discs, DVDs, and CDs
• built-in Wi-Fi for watching movies and shows from streaming services like Netflix® and Amazon Instant Video
• send audio from a Blu-ray movie to your smartphone wirelessly for headphone listening with Private Sound mode