I think it was the first airing of The Goodies, which went out in November 1970. It was a cheery trio of Tim Brooke-Taylor, Graeme Garden and Bill Oddie. The shows were fairly lightweight and mostly relied on visual humour, such as Kitten Kong, where a giant kitten terrorised London. The BBC seemed to treat The Goodies as virtually a children's programme, but Mary Whitehouse certainly didn't see them as children. She described them as being "too sexually orientated", taking particular issue with Tim Brooke-taylor as Harry Worth.
She said: 'Tim Brooke-Taylor was seen undressing, then dressing to mock John Travolta in an exceedingly tight pair of underpants with a distinctive carrot motif on the front'. She later said 'it was the dirtiest programme I have seen for a long time'. The Goodies pleaded for a more adult slot but were refused and in 1980 they went to ITV and later disbanded.
Mary Whitehouse, who died last month, spent more than 30 years campaigning for viewers. In 1963, she was watching an edition of Meeting Point in which a psychologist, a bishop's wife, a headmistress and a clergyman were discussing pre-marital sex. Although none of the participants said so, Mrs Whitehouse concluded they were all in favour of sex before marriage. She was deeply perturbed by this, wrote to the BBC and in 1964 founded the Clean-Up TV Campaign.