"On Our Own" is about a couple of women who are doing advertising in the late 1970s and the other members of their Ad firm.
I don't mean to say that "Kate & Allie" is the center of the New York TV series universe, however, this program became kind of a template for that series.
The two stars: Lynnie Greene as Maria, the Art Director for the little agency and Bess Armstrong as Julia, the copywriter, were similar personality types to the leads in that future series. This show's creator, Bob Randall, went on to write dozens of episodes of "K&A." Both shows were set in and videotaped in New York, with a live audience, which was extremely rare for any sitcom during this era, and the programs also shared producers.
In addition to our two leads, Gretchen Wyler was the owner of the agency, Dan Resin played her second in command, the "Yes Man" ad agency character that perhaps was perfected by David White as Larry Tate on the magical 60s sitcom, "Bewitched," and John Christopher Jones was a fellow staffer, enamored with Dixie Carter, who played a very affected Euro-Model type, with an equally affected (and almost unbelievable) accent!
Since this still is the 1970s and since the show is about a female-led Ad Agency, the inevitable stories had to do with what we would now consider sexual harassment by male clients (and even occasionally among the men around the office), which is likely why you won't see this series getting any reruns. It's a little disturbing by our 21st Century standards to see these scenarios viewed as "humorous" or even as acceptable.
Despite that difficulty, "On Our Own" still stands as a high profile step to celebrate women having success in business at a time when there were few opportunities for them to climb the Corporate Ladder. And the women of "OOO" stood up for themselves when problems were caused by men in the room, which I have to believe helped nudge society in the right direction.
Showing women who were capable, intent on having success by their own standards and able to stand up for themselves was, perhaps, something audiences of the day weren't quite ready to embrace in the late 70s. But they should have been.