Yes.

There are some people who get much deeper with a tv series - see Joss Whedon. (Compare Firefly with its movie. ...actually, I think Firefly is my least favourite of his tv shows - I needed more story arc! Length is an issue with him.)

ALSO anime/manga. I hate it when people trash an entire medium. It's okay to prefer certain kinds, or to not relate to one - but do you have to act like everything in that medium is of the samee quality?