My sub is messing up the picture on my RPTV. (1 Viewer)

[Sheldon C]

I have a mits 65311 and a svs 20-39 pci subwoofer both of which are new additions to my HT. Everything was going great, and I mean GREAT with both the tv and the sub until yesterday. I first spotted the problem while playing music very loudly while the tv was on. Every time the sub would hit, artifacts would bounce all over the screen. Then I tried it with a dvd - everything was fine.

Finally I tried it playing a very loud movie on cable that was in 5.1. Once again the artifacts showed up. What I have realized is that the problem only happens when I am using antenna B, which is what I use to watch cable. Everything is fine when I am using s video or watching 1080i and even when it is on antenna A (used for PIP).

So what gives? Should this be happening at all and if so, why is it only happening using antenna B only? (By the way, I could use s video for watching cable but what I've found is that using the regular coax cable unstead of the s video output from my cable box looks far superior).

Please help!!

Thanks

 

[elMalloc]

can a sub interfere with a coaxial cable?
-ELmO