Thanks for the advice guys. I've included a link to px of my setup, as well as a px of the tv with noticeable distortion of the horizontal lines. I replaced the composite cable with a component for the OSD, and this seems to have gotten rid of the snowing. I also cleaned up my cabling as was suggested, thanks. It's funny, because neither I nor my girlfriend can say for sure that the tv wasn't aberrant before setting up the sound system. Putting in a service call to Sony tomorrow. The sound system is working well, except the 990 does some funny things with several of the digital cable music channels. This was true of my previous receiver as well and I suspect the issue lies with the cable provider.

http://i130.photobucket.com/albums/p257/muttsinparadise/Viewfrombehindcouch.jpg

http://i130.photobucket.com/albums/p257/muttsinparadise/horizontaldistortion.jpg