"I'm not Jerry Lewis. I don't really do the fall-down stuff," Sorbo said. "I like the kind of observational humor that George Carlin does. They can surround me with wacky (characters) and I'll be the sane one who anchors the group."
Personally, I've thought the show was less than B material from the beginning.
A spin off set in the same universe would be a good replacement.
It may be time for the commonwealth to get involved with terrorism. Either fighting against it or helping to free other planets.