Television and Home Theater

I've tried to adjust the color, the contrast, and the bright level and nothing has helped. The TV is only 3 years old. I read on the RCA website that there may be a way to set the picture quality back to the original manufacture setting, but I can't figure out how to do that either. I am just stumped. Please help me because its the only TV I have and don't want to have to save up to buy another one if I don't have to. I am begging anyone and everyone for help as soon as possible.

I have a 1997 TV model F25298WT, which has been excellent. Recently it stopped responding to the remote, to ANY remote (yes, new batteries and re-programming were done!).

Is there something inside that could have "burned out"? Or a tube that can be replaced? Never realized how spoiled I was, but getting up to check another channel, and manually pressing from 2 to 67 gets old real fast.

Any info out there?

Thanx,
Kathy

I recently starting getting thin red lines through my screen. They are uniform in shape and become very visible on a dark screen. The TV is 2 and half years old....