Twelve years ago, one of the greatest series of commercials was produced by Geico Insurance way back in 2004. This idea was about 2 cavemen who hated the saying "Geico.com, so easy a caveman can do it". The commercials show them in a variety of settings and they are humorous. There were 21 different commercials. I'm surprised they didn't make more!
In late 2007, a spin-off was made on ABC using the cavemen. This ended early 2008 and did not last for too many episodes.