I am/was watching a TV prog about yoghurt and had a flashback to a choc yog available in the late 60's/early70's(googled and found this site) - I think it was ski but could have been another brand - I occasionally look for a modern equivalent but am always disappointed - this yog was solid(when you took a spoonful the gap left didn't cave in)had a thin clear liquid layer on top and had a beautiful bitter plain choc/cocoa flavour - it must be brought back!