The Cork-born presenter played a leading role in the success of the show since it started in 1999 and today he took his final bow.
Surrounded by the show’s cast and crew, Cagney made an emotional speech thanking everyone he has worked with during his time at the show.
As a special gesture, he was then gifted one of Bono’s guitars followed by a montage of Mark's best moments over the past twenty years.
Fellow presenter Ciara Doherty made a surprise return from maternity to wish him well, along with current presenters Karen Koster, Alan Hughes, who were both visibly emotional throughout the show.
Messages from fans were read out to mark the occasion. Mark gave a special mention to a woman named Sue, who made him a card featuring photos from the past 20 years.
Chef Catherine Leyden baked his favourite dish - bread and butter pudding - whilst resident gardener Paraic Horkan gifted Mark with a plant.
And it didn’t end there, fans and colleagues have been flooding social media with best wishes for Cagney.
Others commented on how emotional and poignant today’s show was.
