OTA HD should fit. I'd try resetting the TV to factory and try again. If not, call it in and ask about firmware updates.
It's not like a PC but folk want those fine controls we have on PCs.
Just got off cable, now using OTA digital HD. Problem is that the picture is now "too wide" for screen--i.e. we lose the edges. Wasn't a problem with the cable box.
Anyone know if there's a way to adjust this, as there is on most computer monitors? Thanks!