I have personally had it with these commercials for erectile dysfunction. I hear them every other ad break. It is an uncomfortable topic for some men, but the way they deliver the commercial is just so annoying. I also hate the Head On commercials. They have to say Head On at least 50 times every commercial Why.
Them cheap shampoo adverts, or skin oils blahblahblah, etc. They make one saying it's the best, then release another saying that is even better, and it continues on and on and on. Another one I hate is badly dubbed adverts, where it has an oldman's voice, and the guy talking is pretty young.
In the UK there are some really annoying commericals for the Halifax bank - the same bloke has been doing them for years.