Yes friends we can record a channel while watching another channel but the problem is that we can record as well as watch a channel has to be of same frequency and after rec monogram come on screen we can not change that channel if we change channel recording of other channel will be stoped, for example if we want to record discovery then we can watch another channel of 12647 h 27500 freq but after shedule time record starts we can not change that channel for example (TLC) which we r watching.