"Hey up, new neighbours. Suppose we'd better say 'ello" has come back again with its subsequent end-of-break follow-up.
Carol Vorderman in any First Plus advert and any other advert she's done.
The advert that starts with "Have you been injured?" with the man who looks like he's been hit in the face with a saucepan. Think it had the irritating "PI Helpline" jingle on it previously.
Dad's Pants = Vimto advert. Plus its all over YouTube too.
"Cleaner Close - episode X".
Not Irritating:
Citroen adverts as they're pretty good.
James Nesbit adverts. Loved the earlier one with "I know this has got nothing to do with you but my sister is waiting outside and I want her to think you did it".

Think that's about it.