Holly Willoughby and Phillip Schofield were forced to apologise during Monday's This Morning as Miriam Margolyes swore live on air.
The 81-year-old actress joined the duo in the ITV studio to chat about her new book, but she accidentally turned the air blue.
As she recalled some stories to Holly and Phil, Miriam appeared to be being extra careful with her language and told them: "Ooooooh I have to watch myself."