As a teenager I took particular notice of the ladies in this one.
Save Our Petrol (Australian ad, 1979)
NSFW
EDIT: It says a lot that I’d consider a TV commercial from the late 1970s to be potentially NSFW in 2012.
I’m not some ordinary moron. I’m an Oxy-Moron!
Mental Giant: A very tall person who is more than slightly confused.