Watching this 30-40 years later - well bad idea probably. We're used to watch series in a binge sort of way or on demand. There was a time when there was only one episode per week and a season would take up to 24 weeks to be complete - sad if you'd missed an episode. I guess that's why someone thought flashback episodes was a good idea.
But Rikas flashback was a pain to watch. The story around it was so poor and cringeworthy. Had to skip large amounts of clips in this episodes!