I picked up a 46" A550 this weekend at BB. I had an old Mits 55 WS RPTV in the basement for the kids and the HD board went bad. So better to just buy a new tv. So, since it was for the kids, I wanted LCD (I have a Pioneer Plasma in the family room). I prefer plasma, but again, for image retention factors, an LDC fit the kids better. So, I wanted a Sony. Always has Sony's and they've always lastedmore than 10 years without issues. But the kids don't need such a good tv nor would it really matter to them. So I decided on a Sharp. Went to BB and no 46" Sharp. Looked at the Sony and liked it. Then I looked at a Panny plasma but decided no. There standing right in front of me was a 46" Sammy box. I looked up and wow, I was surpised. I went back and forth between the Sony and Sammy. I remember reading a few things about it but never really too notice because I'm generally like Sammy products. Well, I'm a believer with this tv. It's fantastic. Picture quality is excellent, even std. digital braodcasts. Yes, the sound does leave someting to be desired, but that doesn't bother me or the kids. I can always hook up a stereo. I'd rather have a quality picture than good built in sound. Sammy put the money where it counted. Menus are nice and pretty intuitive. Very sleak and clean look to the TV. My wife even loved it. So overall, I'm very happy and now that I'm reading all these corroborating threads, I feel even better about my purchase.
Oh, it's hooked up to a FIOS DVR via HDMI.