There are a number of shows that air back-to-back in the evening that I like to record to watch later. So I go into the guide, and select "Record" on each of them one at a time. Problem is, often one or more of them do not get recorded - when I come back later, one of the shows has not been saved. I can rule out user error. My question is, is there a way to just record a block of time rather than an individual program? Can I tell the machine to record a channel from, say, 8 pm to midnight, without referencing the individual shows?