An emotional Amy Garcia, who shared the screen with Harry for seven years, announced the news at the end of tonight's BBC Look North programme.
She confirmed that Harry died suddenly today (Friday).
"We all at Look North are absolutely devastated to give you this news," she said.
COURT: Scarborough brothers threw man around 'like a rag doll' during vicious street attacks
Scarborough seaweed farm SeaGrown win Government contract to help increase renewable energy
Vandalised Scarborough allotments to be restored as council approves plans to help tackle hundreds stuck on waiting lists
Firefighters respond to Whitby railway blaze and arson in Scarborough
Police issue appeal to find missing Bridlington man Cameron
"Next week we will take time to pay tribute to Harry properly - that's what he deserved."
As she broke down, she gave her condolences to Harry's wife, family and friends from the team at Look North.
Harry joined the BBC in 1978 after working as a history teacher, and joined Look North in 1982, although he left for a spell working on BBC South Today in the 1990s.
He covered nine Olympic Games for the BBC and won two Royal Television Society (RTS) awards for his sports documentaries: White Rose In Africa in 1992 and Dickie Bird: A Rare Species in 1997.
And he won the RTS Best Presenter award twice.
In 2019, Harry became a father again at the age of 68, when his wife, Helen, gave birth to his sixth child.