Did Larry fishborne co star on sanord and son?

You are likely thinking of Larry Linville, who played Major Frank Burns on the TV show *M*A*S*H*. He did not appear on *Sanford and Son*.

While Larry Linville is a well-known actor, he wasn't involved in *Sanford and Son*. It's possible you are misremembering or that you've come across a joke or piece of misinformation.