The Motorola 3501 is a 2 two channel record unit. If I have one tuner monitoring channel ch 4 and the other ch 5.........and I select a show to record .....How do I desingnate which tuner will take over that assignment ? For example: I do not want the tunner that is sitting on ch 4 to be messed with. I want to be able to watch the programs on that ch in my buffer. How do I make sure that the program that I want to record is recored on other tuner ( the one that is sitting on ch 5 ? Am I missing the obvious ?