There are a couple of vegan programs on the Beeb. veganville follows some vegans trying to convince merthyr tydfil to go vegan in the space of three weeks over three episodes. It's a reality show and that leaves a bit of a sour taste. It features Joey Carbstrong who has a reputation as one of the more agrressive animal rights activists. A big aspect of the programme is the setting of a welsh town relying on sheep for its income & life.
bbc.co.uk/iplayer/episodes/...
The other is a vegan chef (also featured in VeganVille) cooking up vegan food for a wedding.