Now, with the future of judges Mary Berry and Paul Hollywood still unclear, rumours of a replacement judge have begun to emerge.
Dad-of-five Jamie Oliver is reportedly a contender for the role on GBBO, after it was revealed how much he and his family enjoy the Bake Off, and how much he would love to be a judge.
Speaking to Now magazine, he said that the show was 'really great watching' and that he would 'love' to be closely involved.
'We watch Bake Off. The whole family loves it,' he said. 'Secretly, there's always a part of me in mourning because I'd love to be one of the judges.
'I love Mary Berry and it's really great watching.'
Jamie also revealed he had been offered a judge's role in the US version of the show in 2013, but not being able to take part had been a 'big regret for me'.
Bookmaker Coral has already begun speculating who the next judge could be, should Mary and Paul follow Mel and Sue's suit and quit the show when it moves to Channel 4, with former Celebrity MasterChef winner Lisa Faulkner named as the most likely replacement as presenter.
Coral also suggested that another contender could be former Bake Off winner Nadiya Hussain, as well as Channel 4 stars Kirstie Allsopp and Phil Spencer.
William Hill has claimed that comedian Jo Brand, who presents spin-off show An Extra Slice, is favourite to front the next series.
Other celebrities who've been suggested are Joanna Lumley, comedian Ed Byrnes and Davina McCall.
Who would you like to see as a GBBO judge if Mary and Paul were to leave? Let us know in the comments below