Not to mention the Halifax ones with various 1970s cartoon characters complete with dreadful cheap imitation voice-overs that sound NOTHING like the original.
There are some absolutely shite ones out there at the moment.
I think the two that make me most want to punch my telly are a) the purple bricks one, at the wedding where the father of the bride fancies himself as an even less funny version of John Clees, and b) We buy any car - their stomach...