The ITV daytime show won their 12th National Television Award after picking up another trophy for the Best Live Magazine Show category.
But Nadia seemed a little gutted with the result as Loose Women were also in the same category and have only won fourth of the acclaimed awards.
Unaware that she was on camera, she launched into a playful f-word rant as she laughed with a man seated behind her.
Nadia Sawalha playfully launched into a rant as she laughed about This Morning's win
Inside the National Television Awards 2017
Wed, January 25, 2017
All the winners from the 2017 NTA's
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Mary Berry reacts to winning the Best TV Judge during the National Television Awards
The panelist seemed to repeat the words: “Every f***ing year!”
The 52-year-old television presenter was surrounded by her co-hosts including Stacy Solomon and Kaye Adams when the cast and crew of This morning flocked to the stage – including one of their colleagues, Ruth Langsford.
Long-running show This Morning also beat rival programmes BBC Breakfast, The One Show and Sunday Brunch.
One of the hosts, Philip Schofield, began his thank you speech by remembering the show’s agony aunt, Denise Robertson, who died aged 83 in April last year.
He said: "We'll start on a sort of serious note, just to say that this time last year we had Denise Robertson on stage with us and we really miss her."
Holding up the silver trophy, Phillip, 54, continued: "So, this is for Denise Robertson this year."
This Morning cast and crew on stage accepting their National Television Award
Holly Willoughby and Philip Schofield spoke on behalf of the cast and crew
Holly Willoughby, Eamonn Holmes and his wife Ruth, Rylan Clark-Neal and Ferne McCann were all on hand to pick up the coveted trophy.
And Holly, 35, seemed very overwhelmed with the win, she said: "What are you doing to us you crazy people, thank you so much. We love, love, love doing this show, we really do, it's so special.
"I love working with Phillip every day and I'm so lucky to sit next to my best friend all the time. Thank you so much."
Philip added: "We just want to say obviously we shamed ourselves last year and so we are not going to do that again this year, we are going to get tattoos. Thank you very much."