Just in time for the Super Bowl, Consumer Reports has a guide to buying a very, very large television. They like the 57-inch Sony KP-57WS500 (pictured at right), the 51-inch Hitachi 51UWX20B, and the 50-inch Toshiba 50HDX82.
http://s1.amazon.com/exec/varzea/ts/exchange-glance/Y02Y1682404Y0162752/qid=1042783904/sr=gizmodo-20/103-6914722-8864618?tag=gmgamzn-20