King Charles III is expected to use his annual Christmas message to highlight health workers, at the end of a year in which both he and the Princess of Wales were diagnosed with cancer.

King Charles has used his annual TV message to give personal thanks to the medical staff who have cared for him this year.

The Finale" proved a winner for the BBC in the U.K. Christmas Day ratings battle. The long-awaited 90-minute special, which was written and exec produced by stars James Corden and Ruth Jones, pulled in 12.

The British monarch recorded his annual holiday address from the chapel of a former hospital, rather than from a palace.

King Charles, Queen Camilla and other members of the royal family participated in the Christmas walk to St. Mary Magdalene Church at Sandringham in Norfolk.

As Charles put it, “I am deeply grateful, too, to all those who have offered us their own kind words of sympathy and encouragement.”

Charles offered his “heartfelt thanks” to medical staff who offered “strength, care and comfort” during cancer treatment