Daily Show (12/8/10) report on 2 opposing candidates for the Connecticut state senate (Andrew Maynard and Stuart Norman) who campaigned together, civilly. Funny and inspiring! Watch from 4:02 to 10:25. Here's a news story on the race.
Bill O'Reilly and Jon Stewart engaging in a vigorous discussion while being respectful of one another.
Here's a really silly one: Two twin babies having what appears to be a civil debate. May be useful to trigger positive emotion (which opens people's minds) before a class or lecture on civility.