http://store.sony.com/p/Sony-4K-TV-Ultra-HD/en/p/XBR65X900A
"Sony's first foray with the new TV technology was an 84-inch set it began selling in November for $25,000."
"Sony's rivals, Samsung and LG, also sell sets, but theirs are only available in models larger than 80 inches with price tags of nearly $40,000 and $17,000, respectively."
http://www.latimes.com/business/technology/la-fi-tn-sony-4k-ultra-hd-tvs-20130523,0,7835515.story
http://www.digitaltrends.com/home-theater/best-buy-stocking-4k-ultra-hd-tvs-to-spark-sales,
http://www.techradar.com/news/home-cinema/high-definition/ultra-hd-everything-you-need-to-know-about-4k-tv-1048954
When a 4K HDTV starts to get under a $1000 more people get interested.
http://reviews.cnet.com/8301-33153_7-57589595-10391733/get-a-50-inch-seiki-4k-hdtv-for-$965.99-shipped
EyeIO or http://eyeio.com,
http://www.ultrahdtv.net/sony-eyeio-4k-movie-service,
http://www.engadget.com/2013/05/31/sony-will-use-eyeios-video-compression-tech-to-deliver-4k-movie