I was on that BBC RFTP workshop a few weeks ago and Bill Dare (I think) went through a list of the different types of sketch comedy, which he said everyone should already know. Everyone except for me obviously.
It's taken till now for me to actually get round to looking them up and I can't find any mention of them anywhere.
Two types I think I remember being mentioned were displacement and inversion sketches.
Any recommendations as to where to find more details?