I'm not sure how far the format has spread over the years, but in the UK at least Desert Island Discs is something of an institution. It's a radio programme with a very simple format that has been running for over 70 years and has clocked up 3000 episodes.
http://en.m.wikipedia.org/wiki/Desert_Island_Discs
Each week a celebrity or other notable person is interviewed and asked to pick the 8 pieces of music they would want to have with them if they were marooned on a desert island. They also get to take one book (in addition to The Bible and Complete Works of Shakespeare which they get for free) and one luxury item (which can be another person, or anything that would aid their escape or facilitate communication with the rest of the world).

So, what would you take?