Kate opened up about this tearfully on GMB earlier: “There is a moment in the documentary which I think is tough for people to watch.
“And that is the moment where he feels he can’t go on.
“I managed to record that moment, actually it was quite a long period of that in truth.
“That particular moment was actually a night when I then came in here and was on air the next morning.
“Because it started late at night and I didn’t want to come off the FaceTime, I wanted to stay with him and say ‘I’m still here, I’m still here.’
“So we kept going through the night and in the car on the way to work and then I said to the nurses, ‘Can you put Good Morning Britain on so he can see that’s where I am and doesn’t feel abandoned.’”
Finding Derek is on ITV tonight at 9pm.