Penny Smith is quitting GMTV after 17 years on the sofa.
The 51-year-old's departure comes amid plans for a re-vamp for the breakfast news show and follows weeks of speculation over the future of GMTV's presenters as commercial broadcaster ITV faces tough economic challenges.
She said: "It's an ideal time for me to say goodbye to early mornings.
"Now that the format has changed, I have taken the plunge and am moving on."
GMTV's managing editor Neil Thompson said: "Penny has been a welcoming and familiar face on Britain's breakfast screens for many years.
"She has become a hallmark of GMTV's presentation, not only on the sofa but also as a newsreader.
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