Drama on 3 - Can you solve Professor Grimshaw's lightbulb riddle? - Â鶹ԼÅÄ Sounds

Drama on 3 - Can you solve Professor Grimshaw's lightbulb riddle? - Â鶹ԼÅÄ Sounds
Can you solve Professor Grimshaw's lightbulb riddle?
Everyday Time Machines by Al Smith