Hello Could you please look at two pictures? There are some expressions that I want to know. The first thing is ”fell off”. I guess, from the context it means to be hooked up or really into something. Am I right? The second is that I have a lot of catching up to do. I think that means he has a lot of episodes to see. Am I right? The last is that ”I'm 5 years behind here” Does it mean that he didn't watch those episodes that were made 5 years ago? Could you please help me? Thank you for your time and help.