Bill Turnbull made a temporary return to live TV presenting on Monday morning as he joined Susanna Reid to co-host Good Morning Britain.
The presenters worked on BBC Breakfast together for over a decade before Reid, 49, left to host the ITV morning show in 2014, while Turnbull, 64, departed in 2016.
On his comeback, Turnbull shared: "I can't believe this is really happening, it's so exciting. I feel like I'm coming home."
It comes as Reid's usual co-host Piers Morgan is taking a break from the programme as he enjoys a holiday in the US.
Turnbull jested about Morgan's presenting style after Reid asked if there was anything he wanted to "rant about".
"Television presenters who just mouth off in a rant shout way at the beginning of a show, I just can't abide that," he joked. "If there's one thing I will not have, it's people talking over their co-presenters, not letting them get a word in edgeways."
Turnbull, who is currently battling prostate cancer, is filling in for Morgan for three days this week Monday through Wednesday.
In November 2019, Turnbull had appeared as a guest on the programme when Reid asked him if he would return when Morgan "has been incapacitated".
“I would love to, name the day. I wouldn’t do it full time. It is a little bit stressful and stress is not good for cancer, but every once in a while would be great," he replied.
He publicly revealed his health status in March 2018 having learnt of his diagnosis in 2017.
Last year saw him front a documentary, Bill Turnbull: Staying Alive, looking into the disease and exploring potential treatments for the cancer.