Microsoft Xbox 360 Elite Console "sound speaker watching hd" Questions

...sound system hooked up via HDMI too. My DIsh is also HD, so its also HDMI. Three wires, without the mess. pretty cool, but, when i play a game the sound comes through my tv's speakers. I turn on my ...

...HD TV. Brand new PS3. It worked fine for a few days, but now there are white and green lines flickering across the screen nearly every time I use the PS3. The disturbances seem to be getting worse, ...