Oh, what memories!
It's an extremely tough choice because they're all brilliant.
It comes down to a choice between Helen on the pogo stick and Brian, Dean & Paul's SOS but ...........
I have to go for Helen on the pogo stick - bless her cotton socks - she took something like 41 attempts to do it. And I still howl with laughter when she shouts 'Why don't you just stop blowing the bloody whistle!