On Sunday, 2/16, I searched for "Tonight Show Starring Jimmy Fallon", but I couldn't find it using the normal "Search". So I then did a "Find by Channel". There, I found TSSJF, with the first episode Monday 2/17 at midnight (well, actually Tuesday 2/18 since it was midnight) and created a season pass. I'm pretty sure I then checked and saw it on the ToDo list. Tuesday evening, I couldn't find the first episode. There was nothing in the History about it at all. The ToDo list showed upcoming episodes, as expected.
Last evening, 2/25, I did a search for the new "Mind Games", but I couldn't find it via "Search". So again, I did a "Find by Channel" and created a season pass. Again, I think it was on the ToDo list for last night. Today, it's not there and there's nothing about it in History. The 3/4 episode is on the ToDo list.
I've never had issues like this with any of my previous Tivos.