Porridge was always one of my favourites. Him and Fulton Mackay together were just genius. But the 'Four Candles' sketch was him at his peak. Corbett was little more than a prop in that.
Four Candles was the best Ever Sketch and example of comedy Writing to date, but agree that Corbett carried it off perfectly, watching even now I piss m'self!!
I still regularly laugh when i'm alone about The Worm That Turned and The Phantom Raspberry Blower of Old London Town.
I'm smiling now thinking of him dressed as a scientist.