The Chicago Tribune had an article of a pretty funny thing the local news anchors have done:
WGN-TV weekend anchors Robert Jordan and Jackie Bange do a little dance number each Saturday and Sunday night during their telecast's first commercial break. Word is that it started out as a short 10-second dance, but now they have choreographed it into the full 2:40 of the break.
Here's a link to the article that has an interview from the 2 anchors:
http://featuresblogs.chicagotribune.com/headcandy/2008/12/who-says-tv-anc.html