There are many websites that provide information on both formal and informal fallacies. Three of the most interesting are the Internet Encyclopedia of Philosophy (entry on "Fallacies") http://www.iep.utm.edu/fallacy/, the Nizkor Project http://www.nizkor.org/features/fallacies/, and the Fallacy Files http://www.fallacyfiles.org/taxonnew.htm.

Find one video or cartoon example of one of these fallacies on the Web. The example must take the form of a video/cartoon (check out YouTube, for instance, or search for the fallacies in cartoon banks). The Cartoon Network, Family Guy, Stephen Colbert, or even just plain old cartoon websites are good places to look. Once you've located the example, paste in a link to the file (embed it) in your Discussion Board thread.
Finally, explain why you think this is a good example of the fallacy.