Edit On Demand Favorite Show lists

I have an On Demand Favorite Show lists where I keep my favorite shows for quick access. However, 4 of the shows have been cancelled of the 30 that I have. I do not see an edit option. The only option appears to be to remove the entire favorite show list and not just selected programs. This would mean that I would have to rebuild the other 26 programs and add them back into the favorite show list which seems ridiculous. There has to be a simple way to edit and delete a show from the favorite show lists but I have been doing web searches everywhere and cannot find an answer nor is it in any ATT User Guides ?