Sometimes you read an intriguing little nugget. John Leslie, for example, who presented Blue Peter and then This Morning, but was quickly dumped after a scandal, is now apparently a successful property developer.
Mike Smith, a former radio personality and married to Sarah Greene (formerly of Blue Peter) is, we hear, an entrepreneur.
I'm not sure what has happened to Ms Greene and many other ladies we used to see a lot of: Carol Smillie, Anneka Rice (though she has turned up on Radio 2 on Saturdays), Anna Walker, Philippa Forester, Kate Thornton, Anthea Turner. Gaby Roslin seems to be doing mostly radio, as is Moira Stuart.Fiona Phillips is rarely seen now; she sometimes does the paper review on radio.
What bugs me is that a lot of good, mostly women, presenters disappear and yet current in-vogue presenters are given plum jobs far above their capabilities.
The latest crop of ubiquitous TV lovelies includes Holly Willoughby, Tess Daley and Fearne Cotton. All entirely interchangeable. They look great in a frock but they make me, the viewer, nervous because I get the impression that if everything went pear shaped on their live show, they wouldn't have a clue what to do.
I'm always at a loss to know how people like Nicki Chapman, with her nasal voice, manage to get a good string of presenting jobs including the Chelsea flower show. She was one of the judges on the original Popstars programme years ago when she was in the record industry. Why did she give up a good job like that?
I like my presenters knowledgeable and I don't particularly care what they look like. I love seeing social historian Ruth Goodman, Professor Mary Beard, Professor Sue Black from History Cold Case and Angela Rippon - still so glamorous in her 60s. We need more women like this on our screens, real role models. Who are your forgotten (or current) favourites?