At this stage TV ratings were published with only the Network Top 20, meaning programmes on the minority channel of BBC2 were extremely unlikely to feature. The release of Top 10s per channel began in 1981.
Some of Rip Taylor's act, such as talking about a donkey raping a car, or threatening to "slap" Des, is a little more "edgy" than the series would normally go in for, certainly during this era.