The Hitch Hiker's Guide to the Galaxy

I got hooked on the series in about 1990, when a buddy turned me on to the BBC radio tapes. Funny, great stuff. I then read the books, and enjoyed the whole thing even more. I personally own the large leather bound volume that others have mentioned. I thought they did a pretty good job with the film, but as is so often the case with these things, no movie will ever touch the books.