Oh fair enough. £40's a bit much. I wish they did signings here though, I'd just go and creep haha. And Moffat & Gatiss did a signing of Sherlock Holmes books in London a few weeks ago.. everything's in London D:
Flesh and Stone (the Megavideo and Videobb links should work)
The Hungry Earth (same for this episode)
Cold Blood (same again)
The Lodger (and again)
For
series 6, click the episode and then click 'search links' and if there's a Novamov link, pick that because there's no limit to the amount you can watch on there (although sometimes it has adverts that play out loud so you might need to pause the video and mute the adverts once or twice). If there isn't a link to that, choose a Megavideo or Videobb link.