COMIC Relief fans are expecting Ofcom to be inundated with a flurry of complaints after newsreader Naga Munchetty 'swore' on screen.
The BBC broadcaster appeared to turn the air blue 45 minutes before the 9pm watershed thanks to a joke she was asked to read out.
In a funny skit, a slew of famous newsreaders were handed a piece of paper with a series of jokes to read out.
But not all fans were amused by Naga's offering.
She was seen on the iconic red BBC Breakfast sofa as she told her co-star Charlie Stayt: "I went to the zoo the other day, there was only one dog in it. It was a Shih Tzu."
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Charlie laughed, but Naga didn't appear to clock that her quip sounded exactly like she was saying: "It was a s*** zoo."
Much to the horror of some viewers with young children, 48-year-old Naga then kept repeating: "Shih Tzu."
Taking to Twitter, one viewer said: "Oop a kind of swear word before 9pm, Ofcom is gonna have a field day with complaints lmao."
Another moaned: "The s***-zoo joke. Lovely."
And a third simply wrote: "Just turned on #ComicRelief To hear Naga reading out a joke... 'I went to the zoo the other day, but there was only 1 dog there! It was a Shih Tzu!"
Naga's joke wasn't the only part of Comic Relief to raise a few eyebrows.
The first 90 minutes of the charity fundraiser were hosted by presenters AJ Odudu and Joel Dommett, and Doctor Who's David Tennant.
But AJ's decision to wear a bright red, skintight PVC dress for 'family viewing' did not go down well with everyone.