Sounds really cool! I wonder if that five minute tutorial wouldn't be better given online - Torchwood always used to end (on TV) with a pointer to go look at the site, and Casualty could do the same - a lead-in mentioning the first aid tutorial bit, and a few minutes of out-takes/programme background as well, something for the serious fans/anoraks every show attracts. That way the stuff would also be available (and hyper-linkable) all the time. Regarding the shortcuts they have to take because of film restrictions (like inconvenient sunsets and camera size) there was an interesting article on the bbc news site about the whole reality in fiction issue - http://news.bbc.co.uk/1/hi/magazine/6339747.stm The comments at the bottom make for useful food for thought.