There could be some kind of deep message in the fact that tonight's episode of LA Doctors (Pearl, 8.30pm) is called Whither Thou Goest, which of course is the line Ruth said to her mother-in-law Naomi in the Old Testament, and the decision to screen King David (Pearl, 9.30pm), the faithful, solid adaptation of the life of David, who was Ruth's great-grandson.
But I doubt it. The episode of LA Doctors has absolutely nothing to do with in-laws, but a lot to do with loyalty and marriages under pressure.
Sarah and her no-good British screenwriter husband Steven have been having problems for some time, and when her old boyfriend turns up demanding medical attention, the stage is set for further disruption.
Meanwhile, Evan is unable to stay out of the situation when his technically ex-wife Kelly asks Roger to carry out a genetic test to see if she is at risk for breast cancer.
LA Doctors is definitely improving with time, but it still has a long way to go.
And the sooner Sarah and Evan start sleeping together, the better.
King David is a 1990s version of those Biblical epics that were so popular in the 1950s.
Unfortunately in the intervening years, producer, writers and directors have lost the ability to be completely upfront about using the story to make a religious point.
And this is an incredible story, performed by an interesting mainly British cast, including Edward Woodward, Alice Krige and Cherie Lunghi.
David, if you need reminding, was the one who killed Goliath, bonded with Jonathan, overthrew Saul, became king of Israel, fell for Bathsheba, banished his son Absalom and sired Solomon.
Richard Gere is David, and he only just fails to carry it off.
I meant to preview Understanding: Memory (World, 10pm) but unfortunately I forgot to watch the tape until two days before transmission when I discovered the cassette was faulty.
However, I can tell you the programme uses several extreme cases of memory loss, and the way memories are often unwelcome or unreliable, to explain how the human brain retains information.
A car crash victim called Patsy had to rebuild her entire identity when the accident destroyed everything she had ever known about herself.
A Vietnam veteran called George spends most of his time trying to forget, but cannot.
Beth Rutherford was an example of the controversial false memory syndrome, who 'remembered' being assaulted by her father as a child, although she knows now he did no such thing.