TV can be a hobby, but hobbies typically have actual engagement from the hobbyist. There are a lot of people whom watching television/movies is a real hobby, and for those people you can tell that's the case.
In my experience for most people it's strictly a time wasting/filling/background noise activity. If you are spending a considerable amount of time watching television to time waste then you probably should try and find more fulfilling activities. This is not prescriptive of what those would be.
