Roman Kemp was forced to apologise as he hosted The One Show on Monday evening after a guest swore live on air.
Actor Zachary Levi made the blunder in the BBC studio while appearing on the evening programme alongside Dame Helen Mirren.
Roman Kemp was hosting the show alongside Alex Jones as they interviewed the actors about the upcoming movie Shazam 2, a sequel to the 2019 original.
However, when Zachary launched into a personal speech about his female co-stars, he unintentionally breached the Ofcom guidelines about profanity before the evening watershed at 9pm.
The actor said: “You add to the mix the incredibly beautiful, talented women: Helen Mirren and Lucy Lu and Rachel Zegler who are all the daughters of Atlas and they are p****d off.”
Host Roman was quick to jump in and apologise to viewers at home, as Zachary was none the wiser as to what had actually been foul language.
Speaking to the camera, the host said: “We would just like to apologise for any language that you may have heard a moment ago.
“Certain words mean different things on different sides of the world.”
Zachary was left scratching his head at what he had said as he attempted to make light of the situation by saying: “What did we say? Oh my God I can’t wait to watch this on the internet.”
Co-star Helen was even left confused as she asked Roman if it was her or Zachary that had made the unfortunate slip-up.
It comes after a similar on air slip-up on The One Show last month, when Sam Smith hwas misgendered again as they corrected Alex Jones' 'fisherthem' comment.
The star appeared on the BBC show where they revealed they have a secret fishing hobby which they'd like to pursue further after music.
They said they'd like to become a 'fisher-them' on the programme. However, the non-binary popstar had to correct presenter Alex as she asked whether they would like to be a fly fisherman.
Sam, who uses the pronouns they/them, appeared on the show following their Brit Awards performance.
Fellow One Show host Ronan Keating asked Sam: "You're a big fan of fishing?"
The singer replied: "I do love fishing, yes! Yeah, I'd love to be a fisher-them."
Alex asked them: "What, like a fly fisherman?" Sam corrected her by saying: "I'd be any type of fisher-them.
"I think I would like to, one day, I'd just like to end my days fishing. Like sitting on a bank."
They added: "I do it on the sea and I do it on lakes. I've never done it alone, someone's almost taught me."