Glass: the future for Sylveste is not all it seems in Pat's crystal ball. Tony's ingenious painting on glass doesn't please the Burbles and the Prof receives the biggest fan letter ever.
Tony Hart, Pat Keysell, Sylveste McCoy and The Prof
(The address to send paintings to is: Tony Hart, BBC TV, [address removed]. Unfortunately they can't be returned but a prize is given for each one shown.)