I've been rewatching this since they started showing it on Dave. They are currently in the second half of season 4. This is the third time I watched it - the first time on my own after reading about it here and the second time when I badgered Mr L into it, but they were very close together. I think it's been two years or nearly that since I watched an episode, and it really is like discovering it all over again. I really do think David and Patrick may be my favourite TV love story ever.