With my old CRT TV, I had 3 RCA plugs connected from the sound system to the back of the tv, in the 'monitor out' plugs. I have a new Hisense LCD tv, I have tried connecting the 3 RCA plugs to different plugs in the back of the new tv, but can't get it play dvds or videos. It works well for digital and HD tv channels. When I change the 'source' from digital to whatever I have connected the sound sytem to, I get the message 'no signal' Thanks, Suzanne

Televison & Video - Hisense - TL3000 30 in. HD-Ready LCD Television