I went to 2 different Best Buy stores today with the intention of examining the UN55D8000 & XBR55HX929. Both stores had the TVs I was interested in seeing, but the first store was in some disarray and made demoing either set difficult.
At the second BB store, a salesrep came up to try and "help" me make a choice and in the process of talking about nothing in particular and getting hardly any useful information that could help, the one thing that I gleaned from hime was that the Samsung was running a local video feed through the component inputs, whereas the Sony was sitting off in the corner with a dedicated bluray feed running the Sony approved demo disc. I asked him to get them both to display the same thing, only to discover later that it wasn't feasible to do. These 2 sets where sitting 10-12 feet away from each other and perpendicular to each other, which meant that I could have stood in the intersecting point and just turned my head 90 degrees to see either TV in its sweet spot. If only they could have had them....
As it turns out, Sony being the old retail pros know to segment/separate/enshrine their top end displays and require the Magnolia stores to give them the best/distinctive/approved setup and will give them the best possible chance to impress potential buyers.
Samsung also had a few dedicated displays and demo corners of various models around the store, but when it came to spotlighting their top end models, they seem to have left things to the store monkeys to set up. And in the case of the store I'm went to, it was as I mentioned, being fed a crappy analog signal via component, which admittedly made it look much worse than expected.
So after 15 minutes of talking with the salesrep, I asked him to connect a bluray player to the Samsung if only to see what it would do with a decent video feed. Needless to say, the TV instantly looked amazing when fed through the HDMI input, and now the picture quality was at least on Par with the HX929.
And between the back and forth demoing and messing around with the remote controls of both TVs and using the onscreen interfaces, various adjustments, and TV apps, I became convinced the Samsung was the better set. And that qwerty keyboard remote control is much better than the Dismal Sony unit.
Also, whatever potential advantages the Sony panel may have over the Samsung as a result of the backlit vs edgelit LED technologies, it was almost invisible throughout the time I was there to audition the sets...
Needless to say, I ordered the Samsung and am waiting impatiently for it to be delivered.
Happy shopping to everyone.
Cheers!