Fan made final episode
Check this out:
http://www.youtube.com/watch?v=1aolbyKyBkw
these guys are obviously fans and i think it's a testament to the shows brilliance that there are people making fan vids so long after the show ended, and it's quite funny too. I wish the BBC would wrap the show up if only with a 2 hour special, the cliffhanger ending is just plain frustrating.