IN PRINT EPISODE 33 »Surely I'm not the only one who has ever wondered about this? I know why it's the case; the 3rd Doctor era was very much a 70s action show. Every one knew Kung Fu in the 70s so it made sense the Doctor knew Deja Fu (I'm quite proud of that phrase). Yet he seemed to forget all about it when he became Tom Baker. Just as well really, Tom doesn't strike me as a Deja Fu kind of guy. So in my head the canon reason became that scarf....
