Which episode was the 'thong' TV commercial from?

Hi, I only watched a couple of "Jake in Progress" episodes including the season premiere one on 1-9-2006, I like it very much. But I rememeber seeing a TV commercial for it during some football game in which a girl was showing her thong/g-string underwear from a shop counter. I didn't see this scene in the 2nd season premiere episode. So was it from early last season? If yes, which one? or maybe it will be in coming episodes? Thanks a lot!