I think I've worked it out - Torchwood is a show to watch for the fandom. Just consider this comment:

"It involves alien-hunting and a cyborg fighting a pterodactyl, and I am quite, quite certain that every single pairing is canon. Just watch an episode, pick any two of the main characters, and I can pretty much assure you that it's either canon or will be canon in the near future. It's just a fanfic-writer's dream."

I think that's a fair summary. Watch. Laugh. Write Jack/Hand crack fic. Never think too deeply! *g*