The One Show is known for being family entertainment, with no naughty bits allowed - but that all went pear-shaped last night when a guest swore live on air.
On Tuesday (June 11), Matt Baker and Emma Willis welcomed cricket commentator Henry Blofeld to the famous green sofa.
Emma described him as "the voice of cricket, known for his colourful clothing", but it was his colourful language that grabbed the attention of the viewers!
Or rather his colourful hand gestures!
Appearing on the show alongside Black Mirror creator Charlie Brooker, Henry amused the studio audience and those watching from home with tales of his career.
However, Emma and Matt were forced to apologise when the 79-year-old TV veteran forgot the first rule of family TV - please do not swear!
Henry, who is about to go on a theatre tour with Strictly Come Dancing star Graeme Swann, was telling the hosts about an encounter with some seagulls.
Henry Blofeld and Charlie Brooker together on The One Show is one of the oddest guest combos.
Describing how a bunch of seagulls 'went for him' one day, he went on to say he has always been so nice to seagulls, but they gave him 'two fingers' in return.
He said: "I was talking about seagulls in Cardiff and I was walking down the high street and there were lots of puddles outside of a florist shop.
"I stopped while the man watered it down and they all came from nowhere and they must have thought, 'Blowers, we've got you'."
He continued: "And I'd been saying such nice things about them! They're elegant, graceful, floating through the air.
"And they did that to me," he said, sticking two fingers in the air.
As Henry gave the infamously rude signal, Emma was heard taking a sharp intake of breath as Matt quickly intervened.
He said: "Oh hang on, we can't be doing that on a family show."
Laughing a little, Henry said sorry before adding: "Well I mean it was a family seagull, but there we are."
Fans at home saw the funny side, with one tweeting: "#Legend #Blowers Pesky gulls."
Another simply called Henry "a legend", while another added: "Henry Blofeld and Charlie Brooker together on The One Show is one of the oddest guest combos I think that could exist ever."
Charlie seized the opportunity of having a legendary commentator on the sofa with him, asking Henry to read the lyrics to a Stormzy song.
Random, yes, but also genius!
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