I saw a show Desi had produced a while back called THE MOTHERS-IN-LAW, which lasted only a couple of seasons . . . it was an interesting concept, and I think it could have worked, but admittedly, it was already a formulaic show to begin with, so I can see why it didn't last too long. That, and because it had the same writers from I LOVE LUCY, it was essentially as if Fred and Ethel had a daughter who married Little Ricky and Lucy and Ethel are always meddling in their lives and annoying Ricky and Fred in the process -- that's the best way I can describe the show and it's characters (though just to throw this out, TMS guest Kaye Ballard was one of the mothers-in-law). Also, even though it came out in the 60s, when single camera laugh track sitcoms were still prelevant, THE MOTHERS-IN-LAW was a multi camera audience sitcom, so it felt out of place for that period, despite that's the filming setup that Desi pioneered for I LOVE LUCY - it just didn't catch on again until the 70s.