The only time it's worth mentioning C-Span is when they get pranked during their live political talk shows.  I can't believe after how many times this has happened they don't screen the calls first, but thank god for it other wise we wouldn't be enjoying this gem today.   The caller at first sounds like he is making complete sense, but delivers the big blow right at the end.  I don't see what the big deal is though, because if he doesn't it's pretty much a deal breaker for me.