Mark Gatiss, British writer for and actor on the Sherlock series (he played Mycroft), hosted a BBC4 special in 2010 on the history of horror films, and now you can watch it on YouTube for free. Highly recommended if you’re looking for something seasonal yet informative. It includes interviews with John Carpenter and George Romero. Part 1 is posted below.
Another related recommendation, especially for those of you interested in learning more about the Universal Studios Monsters of the genre’s golden age, is Monster Madness, which can be viewed on Amazon.