I finally received my HD receiver (Samsung T165) and got my locals tuned in. I have the 50" GWXBR. All I can say is WOW! Granted, this is my first HDTV, and while I've seen HD on some TVs in stores, it just doesn't compare to having it in your own home. Since I had no previous in-home HD experience, I guess you can take all of this with a grain of salt.
Even watching non-hd shows on this thing rocks. The OTA digital SD broadcast of Amazing Race 3 on CBS last night looked really good. Not quite HD, but it blows away what I get through satellite. It really makes me hate the over-compression that those satellite providers have to do to give you all those useless extra channels. I don't know what cameras they use for Amazing Race (digital would be my guess), but most of the time it was razor sharp.
Then I switched to FOX to see what their enhanced definition widescreen programming was like. They were showing Fast Lane. I'd never watched the show before. All I can say is, results were mixed. Being 480p, some shots were soft, while others looked good. They really pump up the colors on this show. The greens and blues and reds were simply gorgeous. I wish it had been true HD. Maybe someday FOX will learn.
After that, I swithced to NBC for some Law and Order in true HD. It looked pretty good, but a little flat. At the fifteen-minute commercial break, I switched over to PBS, and they were showing a nature show called Sahara. It was stunning. This show even caught my cat's eye. He had been sleeping on the chair, but when he saw this, he woke up completely and sat there for a few minutes, eyes wide open. Then he hopped off of the chair and sat right in front of the TV. They were showing desert mice and cats and snakes. He propped his front paws on the top shelf of the TV stand to get a closer look at the picture. He craned his neck to try to see the side of the TV to see where these animals were coming from (or to figure out how to get in there himself). It was pretty funny.
After that, PBS was showing a Newport Jazz Festival. This looked really great as well. Very sharp and 3D-like with great colors. Nice shots of the performers and boats on the water and of the crowd. I had to force myself to turn off the TV, as it was 11:20, and I otherwise would have watched the thing until midnight (or whenever it ended).
Needless to say, I am very happy with my purchases (TV and HD receiver). I'm looking forward to catching CSI tonight. Another show I've never watched, but if it's as good (both PQ and content-wise) as people say, I'm sure I'll be a new regular.
Thanks to all the people on this forum who steered me towards this TV and to ftlee and mchilli for helping me get a great deal on this set.
BTW, I switched the output on the HD receiver between 1080i and 720p, and I saw no discernible difference. I also flipped through the different Picture modes and settled on Standard, though even Vivid looked good with HD material.