The Elastic Band - Do Unto Others (TV cameo with pre-Sweet's Andy Scott)
Here's a TV series cameo by The Elastic Band from 1968, featuring pre-Sweet member Andy Scott. The song was written by Derek Hilton, who wrote quite a lot of music for various TV series.
I'm assuming the song was written specifically for this episode, as it deals with an organization called, "Do Unto Others", who are a charity run by some dodgy characters. I'm guessing somebody at Decca decided to release this as a 45, as some sort of tie-in to the TV series.