Introduced by John Dunn

Adventures of the Incredible Dr McLoon
by Brian Thompson
With John Franklyn-Robbins and Carole Hayman
Producer Tony Cliff

4.5 Use Your Wits
The nation-wide word-game contest devised by Tony Shryane
Compiled by Peter Moore
4: Manchester (Wright Robinson High School). Julie Terry and Joanne Bevins challenge Mark Barlow and Philip Craddock. Chairman Tom Coyne

4.20 Sports Competition Results: Don Mosey gives the answers to his quiz and names the prizewinners

4.25 4D Disc: Paddy Kingsland, who composed our signature tune, talks about that and other radiophonic music of his, now released on a BBC LP - 4th Dimension.

4.30 Popinjay Stairs
by Geoffrey Trease
4: High Tide at Midnight
Producer Harry Catlin
Editor GRAHAM GAULD