I have an HD DVR from my cable company Time Warner in LA for which I get basic HD channels plus HBO & Showtime in HD. If Showtime broadcasts a movie in 5.1 surround sound & I record this on my DVR, will it record and play back in 5.1 surround sound? My HD DVR (Which is also my cable box) is connected to my TV via component cables. The sound of my TV is connected however by an RCA cable from the monitor audio out (left & right) to my receivers TV in (left & right). I don't go from the DVR audio to the receivers TV in as the sound isn't as good. Anyway, will the DVR record 5.1 and will I be able to hear playback in 5.1 the way I have this set up. If not, what should I do. I have an optical digital input on my receiver. Likewise, if I'm watching the actual HD 5.1 broadcast as opposed to a DVR recording of it, will I hear it in 5.1 or do I need to set this up differently? Paul from LA mentioned something about a digital connection being needed.

Appreciate your help. I tried calling Time Warner who's usually pretty good but I kept getting
English as a second language women who obviously were not technicians even though I had a techncal problem and they were clueless.