Freddy: “We could hear you all banging away”Rod: “Banging can be fun.”Jane: “Ooooh yes, and I was banging away all last night with Rod andFreddy.” Rainbow was a British children’s television series, created by Pamela Lonsdale, which ran twice weekly at 12:10 on Tuesdays and Fridays on the ITV network, from 1972 to 1992. I saw this clip on Plurk earlier and thought that it was just dead brilliant. The Wife wonders how they managed to keep straight faces throughout the sketch. Just watching it the first time I missed a few of the gags, as it is a lot…