LCD HDTV for Gaming?

Can anyone point me in the direction of a good lcdtv that would be good not only for movies but for gaming as well? i know some tvs brag about being a “Gamers tv” but dont seem to see a difference between them and others… should i look for certain specs or hookups? im looking for 50"+, and would PREFER to keep it brand name (Sony, Sharp, Phillips, Toshiba, Samsung, etc). thanks for any help in advance!