We went to see the movie Pirate Radio tonight. It is a fun one, and certainly a movie for the 60's generation. It's quite a soundtrack.
I had no idea of the history of it, that thirty minutes to one hour of rock and roll was allowed to be broadcast a day in England so ships anchored offshore and blasted the air waves.
Here's a review by Roger Ebert. http://rogerebert.suntimes.com/apps/pbc