The tv now makes a loud buzzing noise when turned on (regardless of the input selected). I don't believe the noise has anything to do with the volume/speakers because it is consistant eventhough I adjust the volume up or down. The sound sounds like it is internal to the set. The colors seems to be a bit off, too.

Any ideas what would cause this noise? color wheel?

Televison & Video - Loewe - Articos 55 55" Rear Projection Television