The King’s message will form part of an evening of programming at the end of a week-long Stand Up to Cancer campaign.
The night is intended to raise funds for cancer research and support all those affected by the illness.
It will be followed by a live broadcast from a cancer clinic at Addenbrooke’s Hospital in Cambridge, presented by Davina McCall.
This year, Stand Up To Cancer has launched a simple online screening checker to help members of the public research the breast, bowel and cervical screening programmes they may be eligible for.
The King is patron of Macmillan Cancer Support and Cancer Research UK.
In April, he issued a written message ahead of a Buckingham Palace reception for those working in cancer support, saying receiving a diagnosis could be a “daunting and at times frightening experience” for individuals and their loved ones.
“But as one among those statistics myself, I can vouch for the fact that it can also be an experience that brings into sharp focus the very best of humanity.”
Quoting the late campaigner Dame Deborah James, he added: “And to those who may be receiving such upsetting news today, tomorrow or at any point in the future, I can only echo the departing words of the late Dame Deborah James…
“‘Find a life worth enjoying; take risks; love deeply; have no regrets; and always, always have rebellious hope’.”
The King’s message will be broadcast at 8pm on Channel 4 on Dec 12.
