Here are a couple of information sources where you can search for opportunities to pitch your music. Maybe you have a song already written that you want to find a placement for; or, find the place then write the song. That’s up to you but here is where to look:
IMDb Pro An Insider View of the Entertainment World.
In Baseline Provider of Film and Television Information.
TV By The Numbers TV Ratings, News and Information.
Good luck placing your music!