Hi friend.
When you are going to watch a TV Show, choose a short as 30 minutes.
I didn't advise you watch film, because it is too long and you lose the focus.
I think if you to write notebook, in this site, it will help you to much as well.
I have watched tv show in the site www.ororo.tv/en. In this site you can to use several idioms and turn dow slow down the speech.
:)