It's a week of royal documentaries. We have had Princess Diana confessing all, her ex-lover James Hewitt filling in the details and now we have Prince Andrew up for inspection.
The Queen, an increasingly sour-faced woman but one who has seldom let the Windsor side down, will be able to rest more easily over this programme.
Imagine how the poor sovereign must feel with her children, their philanderings and their spouses' philanderings never out of the papers.
Their lives and loves are so much an every day part of our lives that even the announcement of a holiday to Phuket is generally followed by the line: 'I'm going to see what this toe-sucking lark is all about.' Anyway, there is no mention of the Johnny 'rotten' Bryan in Prince Andrew, RN (Pearl, 8.30pm), even if the Queen's second son - who was separated at the time of filming - does allude to the difficulties of keeping a marriage on solid ground while your career is at sea.
It is the prince's naval career that the one-off documentary concentrates on.
In 1994, he became captain of HMS Cottesmore, a hunt-class minesweeper, after serving 15 years of a 22-year commission.
