The latest 2014 model 55" LG 4K Ultra HDTV, LG 55UB850T.
http://www.lg.com/au/tvs/lg-55UB850T
You can find them at retailers starting around $2235.
3840 x 2160 pixels progressive = 8.3 Megapixels, 4 x the
resolution of full HD.
Now though DTV broadcasts and Blu-ray are only HD, the upscaling
engines on these sets does a fabulous job enhancing the image quality.
What is jaw-dropping is streaming 4K content from the net. Most
motion pictures are shot in 4K these days and that is what is typically
projected at the cinema. So we may look forward to consumer 4K players
in the near future.
The colours are natural and superb.
If you like looking at astro imagery they look breathtaking on these sets
using it as a monitor with the 8.3 Megapixel resolution.
Twin tuners, 4 x HDMI ports, optical audio out, 3 USB ports, Gigabit
Ethernet and in-built WiFi.