On the Buses (1971)
When the bus company finds itself short staffed, it is Inspector Blake who comes up with the brilliant idea of employing women drivers The company is delighted, but the bus crews are horrified and try to get rid of the women
Holiday on the Buses (1973)
Stan and Jack seek work at a bus driving holiday camp after being fired from the bus company for crashing two buses, only to find Inspector Blake works there also