Heya,
I don't know if anyone's helped you with this yet but no, Kitson hasn't released any DVD's, he's a bit against that whoel thing from what I can gather. He did had two older shows up on his web:
Daniel Kitson, they might still be up. I'm pretty much in love with Kitson (as much as a straight man can be), so if you have any further questions, drop me a message.
c