My wife and I watched this faithfully in the late 1970's when it was shown on PBS and we were just married. We laughed throughout the entire 13 episodes. And we watched almost as faithfully when they were run again, because the show was so hilarious.
I can still vividly remember a number of the episodes, and like another reviewer, one that stays etched is the one where CD and his 'parents' are invited to Clara's for dinner, only he is basically an orphan but is ashamed to admit it, so he asks his current stage 'parents' to stand in. At the same time, Clara's family's cook and server are gone for the night and they have to hire temporary help. And then the stage parents don't show up. It is a laugh out loud show from beginning right up to the surprising end with mistaken identities played for all its worth.
The others I remember are their first meeting at a cocktail party where Clara was trying to read War and Peace, I believe, so she wouldn't have to meet people, and CD persisted to their shared enrichment.
And the one where CD tried to update Clara's wardrobe with a hilarious ending. And their honeymoon, where Clara was insistent that they appear as an 'old married couple'. (and the one where she faithfully ironed his shoelaces before he went on an interview)
John Alderton was good, but Pauline constantly stole the show with her appealing good humor, her smile regardless of what was happening, and her acceptance of most things at face value. You couldn't help but laugh at her, with her, and feel sorry for her at the same time, and just marvel in her continuing innocence and trusting nature.
Much of the humor is British and it may take repeated playbacks to catch the rapid-fire deliveries, but for fans of Pauline, and those who like silly innocent humor, it's worth every penny. No, honestly!