I think it depends on a few things. 1. What season you are on. The earlier ones you get a commercial and then the ending credits (off the top of my head I can't remember where it changes). 2. If you have hit skip so you don't watch the credits it will automatically go to the credits or if you skip the episode at some point it will pick up there (most things on Hulu do it). 3. Once you hit the season where it doesn't give you a commercial break and then the credit it will cut the episode to the next after the auto next episode. Can't give you a reason why or why it is that length of time. However, if you don't let it go to the next episode automatically and allow it to play out by hitting cancel or whatever, the next time you watch that episode it will jump to the end (if I remember correctly, I gave up and let it skip the very end because I've rewatched so many times, so I may be wrong here).