My TV is acting funny.?

[TravisE]

I have had my TV for about 18months now. Just out of the blue yesterday it started acting like the colors were out of alignment or something the
Red blue and Green versions of what should be just like white. Also, all the cables that are hooked up have been hooked up the same way for
about 6 months so i know nothing is plugged in wrong. Can anyone help me out with this? All help is appreciated. The TV is a 52" RCA DLP

Quick question on a question, lol. I do have a surround sound system with a 12" subwoofer, would that cause it to mess up?

[MattM]

I have an old (and I mean old) DLP projector, and it will do that once in a while if the color wheel gets misaligned. I just give it a whack when it starts acting up and it fixes itself. Did somebody bump your tv? It could've caused that.