“The BBC was approached because they have a special relationship with Buckingham Palace and a formula that works.
“But they turned it down because they don’t think enough people will tune in and that there isn’t enough support for the Yorks.
“The feeling at the Palace is that the BBC has dropped the ball. At the end of the day this is going to be a huge royal wedding, with all the senior members of the Royal Family in attendance.
“But nobody wants to take the risk and spend the money it would cost to put it on air.”
The Duke of York’s youngest daughter, 28, is due to tie the knot on October 12, in Windsor Castle — the same venue as her cousin, Prince Harry, who recently wed Meghan Markle in a lavish ceremony.