Mitsubishi VS-5043 50" Rear Projection Television "dvd player vertical horizontal hold" Questions

...DVD player. We tried everything imaginable. The only thing we got in the whole process (besides a black screen) was a picture that was so unstable you can't make it out. It jumps around and goes ...

...dvd player, stereo & table lamp. TV was the only thing affected. Is there an internal fuse, etc to replace? Will this be an expensive fix, is it worth it, or do we now own a new living room ...