I have an Onkyo TX SR 606 and recently bought the Samsung UN 55B8000, I have connected them via HDMI, I also have a PS3 connected to the receiver via HDMI cable, and an HD/DVR cable box connected to the receiver also via HDMI, finally I have a component connected ipod dock. I had this same set up with my past with my previous TV (sharp aquos) and it worked fine. Ever since I got the new TV I have had problems where there is "no signal" coming from the cable or the PS3. When I hook these up individually via the same HDMI cables to the TV there is no problem. I have assigned and reassigned the inputs and this hasn't solved the problem. Sometime if I leave the cable box and TV on after about 15-30 mins it finds a signal. I've replaced the cable box several times and this hasn't helped. The ipod dock connected via component cables works fine. I've replaced the HDMI cables and this hasn't helped. Sometimes I turn the system on and everything works perfectly and nothing has changed. Is there some inherent incompatibility problem?? neither Samsung nor Onkyo have been very helpful and now I'm out lotsa $$ and have a system that doesn't really work!! Help!