Wow, thanks for posting this!
I'd always read about Our Private World but had never looked online to see if any of it existed. It was unique because it was a nighttime spin-off of a daytime soap--the enormously popular As the World Turns. Lisa Hughes (mentioned in this episode but not seen) was the premier troublemaker on ATWT, and her portrayer, Eileen Fulton, was about as famous as anyone on daytime at that time. They made the mistake of trying to make Lisa more 'mainstream' on this show (that is, part of an ensemble) but the toned-down Lisa wasn't what people wanted to see. Still, centering a spin-off around Eileen Fulton was a testament to how 'big' she was back then.
OPW was indeed CBS's attempt to emulate the success of Peyton Place, but also to transfer some of their daytime supremacy into their primetime line-up. They even aired the show several times per week (as seen in the promo at the end). The look-alike opening titles and similar incidental music (not to mention the name) made it feel a lot like an extension of ATWT rather than its own standalone show. The only signs of it being primetime (in my opinion) are the larger, more well-appointed sets, and (gasp!) the married couple conversing in a full-sized bed. If it were daytime, that convo would have been in twin beds, or they would have been in chairs.
It was especially cool seeing Nicolas Coster in that last scene (as Dr. John Eldridge). Lisa ended up marrying him. She returned to ATWT after OPW was cancelled, and about thirty years later ATWT used her time away on OPW to create a secret child (a son named Scott Eldridge) she'd never mentioned to the people of Oakdale. It was a fabulous plot twist, since Lisa had become kind of...dull? in her sixties and this reminded us that she was always in some kind of trouble in her younger days. Nicolas Coster also got to play another husband of Lisa's, since they enjoyed working together so much on OPW.