A Nintendo DS ad took the number nine spot among the most irritating TV ads aired in the UK last year, as determined by England's Marketing magazine.
The ad doesn't seem that annoying to me, but then I have no attachment to its stars, British comedians Ant and Dec.
Now, the number one ad is definitely annoying:
Full list at the link.
The most irritating ads of 2009 [Marketing Magazine]
(Watch the top 10 here: Go Compare and the 9 other most annoying adverts [Asylum UK]