In television, it is important to know when to stop.
Admittedly there are many, many channels to fill, many hours of television that must fill them, and it is important to recognise the fine work programme makers do to distract us from the mundane grind of everyday life.
But, surely, there is a limit to the extent to which we must sit through the minutiae of people's private lives.
Private is private for a very good reason.
Greg Lawrence, for instance, should not have told us about his sex life.
Greg Lawrence is Canadian, I think, or something like that.
He is also apparently a comedian.
His latest show delves into how to make love to his wife.
In fact, Mr Lawrence's show is called How to Make Love to my Wife (Vibe, December 3, 9.30pm), and is a sort of how-to guide for those who might like to give it a shot.
We learn early on that he is 40, has three children, and has never given his wife "pleasure", if you know what I mean, in all the years they have been married.
Just why she has not mentioned this little matter to him in the past, I cannot possibly imagine, but there it is.
His mission, on this tawdry little outing, is to turn himself into the type of lover he's spent his adult life thinking (God knows why) he already was.
Again, I cannot believe he didn't realise.
How to Make Love to my Wife follows Mr Lawrence as he visits a sex shop, sex therapist, psychologist, porn actor and so on in his quest.
How it turns out I am not sure, because I drifted off.
I am not sure how many shows have delved into such matters, always in a similar "light hearted, brutally honest" way this show sells itself as, but there are too many.
The worst thing about How to Make Love to my Wife is that it is not funny, and if there is an excuse for Mr Lawrence's poor form in his night time activities, there's no excuse for that.
Red Dwarf: Back to Earth has landed, in preview form at least.
Feedback to this column has been intense since I noted its return last week, with up to four people coming out as old fans, and a list of two people who have demanded to borrow the DVD.
The first two episodes were worth a look, but age has appeared to weary the enthusiasm of the actors.
There is a strange, stilted feel to the dialogue.
The show relies heavily on references to Blade Runner, and the story line seems borrowed directly from Stranger than Fiction, where Will Ferrell finds he is a fictional character due to be killed off by the author who created him, and desperately tries to extend his life.
For all that, it was better than anything else on that night.
Enjoy.
