I would love it if I could go "back in time" by at least 12 hours, maybe a day?? Sometimes I missed a show and would like to be able to look back a few hours to see where it was. Tivo had this so maybe why I'm looking for it. I could go back and find the show I was missing, or see what was on before and interact with the guide to record future episodes, etc.
I do understand after using Channels for a couple of months now that the interface goes to the side menu when reaching the beginning of the guide, so maybe just a few hours even to be able to go back and see what was missed.