I mentioned Geza Vermes's appearance on Jesus: The Evidence (Channel 4, 1984) the other day. There are several other appearances by Geza Vermes on video online. The following are both "official" clips. The first is this whole lecture from 2009:
It is a lecture on "The Story of the Dead Sea Scrolls" (Louisiana State University's Hill Memorial Library, September 29, 2009), in which Prof. Vermes is wearing a Dead Sea Scrolls tie (of the Community Rule)!
This one I have mentioned before, A Jewish view of Jesus, from Sydneyanglicans.net:
It is in a series entitled The Christ Files and is filmed at Yarnton Manor, Oxford, and dates from 2011. And there is now a slightly longer version of the same piece (4 minutes) here:
The Christ Files: Geza Vermes interview from CPX on Vimeo.
And in case you missed it, here is the link again to Vermes's appearance on Desert Island Discs in 2000.