have a Comcast digital cable box and I'm using a Denon surround sound receiver. I want to record from cable onto a VCR. I'm unsure how to make the right connections. Should I use the RCA phono sockets on the cable box to connect directly to the receiver for watching cable TV and use the coax out from the cable box into the VCR and then use the RCA phono OUT on the VCR into the receiver for recording and play back?