You can also read an interview of the director of this documentary, Richard Denton, here.
BBC Four: Your central question is did Jesus die on the cross rather than did Jesus die at all.
BBC Four: How do you think he might have survived crucifixion?
BBC Four: If he did survive why do you think it's not related in that way in the gospels?
BBC Four: You make the point that the Ascension isn't actually mentioned in the gospels.
BBC Four: If Jesus was revived in this way where then did he go?
BBC Four: It was very interesting the parallel between the story of the three kings and the search for a reincarnated Lama…
BBC Four: What actually prompted you to start exploring this topic?
BBC Four: You say that the resurrection and the literal truth of the Gospel have in the past been the cornerstone of Christianity.
BBC Four: And in the end have you found that the most credible account?
BBC Four: And did these feet in ancient times walk upon England's mountains green?