Katy's done a lot to keep the torch of the Third Doctor era going. For several years now she's been acting with Tim Treloar as the Third Doctor in full cast brand new Third Doctor stories. Tim does a great job as the Third Doctor, and it sounds like he's his own greatest critic. In the extras he talks about how carefully he studies the role in order to do the best he can. He's even got recordings of Jon Pertwee that he plays to himself between takes. The first set has narration, but it was dropped so the second and third sets are pure full casts. Tim did play up Jon's lisp in the last set, though maybe I'm more sensitive towards that kind of thing. Last time it was noticeable was Richard Franklin in The Rings of Ikiria.