I bought the Seiki 39" for my computer when it was featured on Slashdot as a great programmer's monitor. So far it's just been my tv as we moved and are slowly remodeling, so I don't have an office setup yet. The plan is to upgrade to a larger tv and move the 39" to the new office.
As for Walmart stocking movies, why? Streaming is where it's all going. I admit there a paucity of 4K content, but I don't care, as that's not my use case. NTSC with a good story/plot is way more entertaining than 8K with a crap story/plot.