Quote Originally Posted by kexodusc
If you have a 57" CRT TV, shielding shouldn't be a big problem for you. If at all. I have a 51" Toshiba and I have a large dual 6.5" center channel, and a 15" subwoofer (unshielded) within inches without any problem at all.
Placing the Center at the bass of the tv near the guts might cause some interference, but I've only ever heard that happening with large, unshielded woofers (like my 15" sub), not more modest center channels. Ever try placing it on top of the TV angled towards your listening position? It'd be a few feet away from causing problems up there.
These TV's should be pretty much immune to magnetic disruption, so I wouldn't be surprised if it's another problem, but based on what you've said, I can't imagine what that could be.

Odd that it affected the RPTV and not the 27" CRT. One would expect it to be the reverse if it was a shielding issue.
The magnetic field will increase as volume is turned up, but not really in a fashion that it would affect your TV anymore than with no volume at all. If the speaker is shielded it should be stopping that anyway.

Some times ground loop can manifest itself in distorted, dark horizontal lines in a television, but what you are describing doesn't sound like ground loop.

Here's a fast, neat trick. If you have a shielded bookshelf surround speaker or front main speaker, place it in the same position as your Center channel, does the same thing occur? If not, I'd be tempted to believe there's something funny going on in the center channel.
I tried what you said ,I had a older rat shack pro55 center out in my shop so i put it in place of the klipcsh in front of the tv and turned up the volume on a loud dvd sound track and the picture looked just fine, so there must be something wrong with the klipsch, Now the next problem will be gettting best buy to do something about it , i do have the 4 year extended warranty but i know how best buy is, they will try to get out of replaceing it ,you can bet your a** on that one. thanks for every ones help