It's great! I tried to find some videos of snark but there's so much Fourth Doctor stuff it's hard to find. For second Doctor, there's a funny little tribute (which has a few lines in it). I also find a tribute to Two and Jamie (who is possibly my favourite companion ever), which I'm including just because they were a hilarious double act:

A Second Doctor Tribute (http://www.youtube.com/watch?v=1Xm26StUZVY)

A Second Doctor and Jamie Tribute (http://www.youtube.com/watch?v=MrXaYjeWkZE) < that one may be a shipping video actually. They were a bit touchy-feely for the 60s :P

I WILL PROBABLY SHUT UP ABOUT DOCTOR WHO NOW. :D