Seiki Digital and TigerDirect are offering the no frills model.
How can a 4K TV be on sale for $1500? The answer is plainly Seiki Digital. The company which is known for producing some of the cheapest HDTV LCDs around is now offering a 50" LED TV with a supported and theoretical native resolution of 3840 x 2160. That combination of price and resolution heads the shortlist of details currently known about the set.
The specs from TigerDirect indicate that the set has three HDMI ports and a 5000:1 contrast ratio, and a 6.5ms response at 120Hz refresh rate. Nothing in Seiki's press release or the TigerDirect listing references an ability to scale content, however, Seiki does point out that the set includes a "HDMI 1.4 standard cable to enable video resolutions beyond 1080p."
Seiki also mentions purchasers "future-proofing" and being "ready to experience 4K content as it becomes available in the near future." These specific details suggest that getting 4K content onto the set may not be happen for some time. Sony's FMP-X1 may be the first available option when considering how video cards handle resolution output above 1080p.
The 50" SE50UY04 will be joined 65" variant later this year.