Very happy about this one. Finished my massive Doctor Who marathon about a year ago (all the episodes, including recons of the missing episodes), and I never thought I'd get to see a 'new' classic episode again. The second Doctor has always been my favorite (in fact, I'd say that the 60s are my favorite Doctor Who era, so bloody charming). I'm especially looking forward to watching Web of Fear again, I think that was a very fun one. Yeti in the underground, right? I wasn't as taken with Enemy of the World when I watched it (well, the recon), but it will probably benefit from being in motion. It'd be very interesting to see Throughton play a completely different character. I think the only time I've seen him play something other than the Doctor was in the original version of The Omen (whichi is a pretty bad movie, but scared the crap out of me as a kid).
Conspiracy time: this might have been discussed by someone already, but considering the time it takes to clean these episodes up, is it possible that Moffat adapted the storyline of the modern show, starting with the Christmas episode? Not only does he bring the Great Intelligence back, the Christmas episode shows the Doctor giving the GI the idea to take over the London Underground, which is what happens in Web of Fear. That's not even the first GI/Yeti episode!
So yeah, for people interested in watching these things, technically Web of Fear takes place (from the GI's perspective) after The Snowmen and Bells of Saint John, and during the last couple of minutes of The Name of The Doctor (the part where the GI takes over his timestream).
Crazily excited about this.