I don't think this is currently possible.
It would be a nice addition.
It's a very important addition for those that primarily use Theater View. It's really necessary for a couple of reasons:
1. Suppose you want to watch something in LiveTV. So you do and part way through the show you find out a recording is scheduled to start. You become frustrated,
2. You want to schedule a recording. Unbeknownst to you there is one scheduled around the same time. I actually don't know what the current conflict resolution messages are, but this can be another frustrating situation.
It's way more user friendly to look at what is scheduled before either of these happen. But for those of us that use Theater View almost exclusively that's impossible.
Thanks for considering this improvement.
Rod