I believe that bookmarking is a separate action from recording. You can mark a program for one or the other or both (these are separate actions).I think it's crazy that when you "Bookmark a show or an episode, and that show or episode is later broadcast, the DVR does not record it for you. That's absolutely nuts!
Sometimes I want to just select certain episodes to watch and not make a One Pass. It's easy to select episodes to bookmark for streaming, but if you want to select them for future recording, you need to create a WishList with the program name followed by list of (optional) episode titles. Crazy!
What irks me is when the bookmarking does not result in the program showing up as available until days after it has aired (in my experience, typically three to four days or more). TiVo (even in the pre-Rovi days) was never very efficient in tracking streaming programming, and I have no real expectation that this feature will improve on the DVR system (maybe the Android-based TiVo Stream 4K will operate better in this tracking feature).
The current status, however, is better than nothing, but it is still annoying to see bookmarked programs parked in the Not Currently Available folder as much as a week after they have been shown/dropped on HBO/HBO Go, for example.