The David Tennant Treat 4 Today is a two minute clip from Custard TV's audio interview with David Wolstencroft, writer of The Escape Artist.
In this clip Luke asks Daniel about casting David Tennant and he says some lovely things about him.
Click here to listen to the MP3. There are NO spoilers in this clip.
(Please do not link directly to the MP3 but rather link to this page if you post it elsewhere as the MP3 link will change.)