i think that its 720p because ive seen it say 720 something somewere but im not 100% on that. it was given to me by my bro b4 he went into the military so i didnt get a manual or anything. but im guessing my 3 top picks are the 250 4850 and 5770?
Search for the mfg and model of the tv. Should be a manual and specs available in pdf from mfg.