I havea basic question. I have a new HK 525. The sockets in the back for DVD and VHS hookups are for VIDEO as well as Audio. My digital cable box goes to the TV. Surely I go directly from the video out on the DVD player and VHS player to the TV?? And not to the receiver? And then I run their audio to the receiver. Is this not right? Why do they have video in connections on the receiver? Thanks!