In which Sir Blackwood and Dame Leslie look into the connection between the Doctor and Merlin, spoilers they are the same guy.
http://www.behindthename.com/name/gwalchmei Gwalchmei Name Info
http://arthurkingoftimeandspace.com/ Arthur King of time and Space Web Comic, we also got a quote from the creator.
http://tardis.wikia.com/wiki/Doctor_Who_Wiki Doctor Who Wiki, very informative
And we checked all the Actor's Pervious work on http://www.imdb.com/
Everyone Wants to Rules the World by Tears for Fears
Doctor Who Theme Tune 1963-1969 by Ron Grainer and Delia Derbyshire
End Music - taken from Monty Python' and the Search for the Holy Grail
Opening Music from Heart of Medieval by Butterfly Tea. Downloaded from http://www.last.fm/music/Butterfly+Tea/_/Heart+of+Medieval
Wha Wha Sound Effect Taken from You Tube https://www.youtube.com/watch?v=UtmI--F8Zmo