... Betty Buckley played the "new" mother in the '70s TV show "Eight is Enough." Here she is with her TV husband (played by Dick Van Patten) and stepchildren:
A related meaningless Oz factoid (because I am all about meaningless Oz factoids): Dick Van Patten's real-life sister Joyce Van Patten played Sarah Rebadow (Bob's sister) in a Season 5 episode of Oz.