Guinness: Anticipation

As the poster describes it, "Only the best Guinness advert ever". The dancing man in the advert subsequently went to some length to alter his appearance due to constantly being referred to as "yer man from the Guinness ad". The advert itself was also the subject of an ultimately failed copyright lawsuit, which may account for the absence of this advert from Guinness' archive of their TV spots from the 1990's. Anyway, it's still a classic.