Sony FD Trinitron WEGA KV-27FS120 27" TV "channels skip around channel button" Questions

...channels. Now, the red Aux. button lights up on my tv remote when I push most any button, I can't turn my tv on or off with the remote, and the picture flips around so bad I can't watch it, sometimes ...

...around this problem if I could just get the TV to change to channel 4 using the buttons on the TV itself (they still work). If it is on channel 4 I can get the VCR or my converter box remotes to ...