I was thinking of doing this the other day, and Leevil's Cadbury's ad thread reminded me.
What's your favourite TV ad? (Ok, might be stretching it a bit far here, but I'm sure you get the point.)
Recent entries for me have been the "Chips, Wonderful Chips" series from McCain, and of course the new Cadbury's Dairy Milk gorilla.
THE best, without a doubt though, is this one. I know it off by heart.
(Or maybe that should be ...)