I can remember this especially Jon Pertwee's style, panache and use of many safari suits when presenting this panel show. From what I can remember this was one of Jon Pertwee's best roles (His turn at being the Doctor being his best role) and I can remember his in jokes with the panel about his time as the doctor or "a past life of his" as he used to describe it. The program had the same format every week, in both half's a set murder performed by bit part actors leaving lots of clues the Jon would quiz the panel of the famous, did they pick up on the clues and of course who was the person who done the crime. Classic 1970's TV which I remember was shown early evening on a Monday plus I remember it on an afternoon during primary school holidays.