TV legend Sir Michael Parkinson appeared on Good Morning Britain on Tuesday where he spoke to hosts Piers Morgan and Susanna Reid.
Joined by his son Mike, Michael, 85, discussed his new book which was prompted by his Life Stories interview with Piers.
Michael broke down in tears recalling his dad's death 40 years earlier, during his interview with Piers last year.
Michael said he had "locked his grief away in a compartment" until the moment Piers asked about his father's death.
Michael said he had "locked his grief away in a compartment" until the moment Piers asked about his father's death.
He explained: "In the end it's bound to come out because it's too potent, it's too much a part of your being.
"That's what the conversation with [Piers] did, I was fine and we joked about it before, 'You're not going to make me cry'.
"But it did, it opened a door that I had closed for too long, and the memory of [my father] in that bag and being in that bag, reduced to that, my father.
"It was too much for me. I don't regret crying for my father, you should be allowed to do that any time."
Michael had said on Life Stories, while wiping away tears: "The thing that kind of nags at me like a nightmare is that two guys came to take the body away.
"I see the image very clearly and I thought he’s got to be worth a lot more than that… carrying him out in a little plastic bag.
"He knew how much I loved him, I never found it difficult to say that to him – nor he to me."
Many viewers commented on Michael's appearance, with some remarking he had aged.
One tweeted: "Parky looking frail, but still sharp as a pin, big part of my TV viewing growing up, brilliant interviewer. #GMB ".
Another wondered: "When did Parky get so old? Mind you, its a privilege denied to so many... #gmb ".
"Parky is hardly recognisable there #gmb " remarked a third.
A fourth added: " #GMB if I seen him in a picture I'd of never of known it was Michael parkinson".
* Good Morning Britain airs weekdays on ITV at 6am
