Is it possible to shield unshielded speakers?

I'd just move the center channel a foot-or-so away from the TV. This should do it.

Is that really all it takes? Boy, I guess I was worried about not-much. I can't afford to lose my expensive equipment, but if all I have to do is separate things by a foot (or 2, for good measure) then that will be excellent.

Joshl: The speaker magnets won't damage your T.V.
The T.V. picture will be distorted if it's too close to a magnetic field.

Dweller is right -- to expand on that just a little, I've always noticed the distortion on the edges/corners of the picture. The color may be saturated or the picture distorted. Even small distance separations can make a big difference since the strength of the magnetism increases on a squared basis with distance.

BTW, I presented the aluminum foil idea as a hypothesis above. More knowledgeable members shot that one down, so I wouldn't encourage anyone to follow that route. To reassure yourself, just put some aluminum foil on the outside of the speaker box -- surface closest to the TV. If there is no change, you've only wasted a few seconds of your time.

Ozfly: I think the trick is to ground the aluminum/copper foil.
When a magnetic field passes thru copper, electrical current is produced.
Give the current somewhere to go (ground) and the field is no longer a problem.