Hoping one of you audiophiles can help me with this one:

I have a good quality Yamaha surround home system. When I had it
plugged in through my older Hitachi 27" tv set, I could turn on the tv
no problem.

Now that I have it hooked through my roommate's 32" Zenith tv, when I
turn on the tv or turn it off (his Zenith) there is a loud POP! that
comes out of all the speakers, and I know that's not good for the
speakers. What might be causing that? Is there something I can do to
fix that?

I also notice the speakes crackle when the furnace turns on our off as
well. Argh!


thanks!