Two writers, Jay Moriarty and Ted Bergman also wrote for the Jeffersons and Three;s company and I can tell because some of the eps are similar to what I seen on TC and TJ. Like Raj and Nadine thinking dwayne was dating a OLD LADY the way Janet and Chrissy thought Jack was dating a old lady

And some of the things that Raj says is the same as George Jefferson like..."AH HA"

Also something else from Three's Company..........."in season 1 when the gang went to see Rob's place it was abandon and then Raj bought it and fixed it up like Jack did on Three's Company with the Bistro in season 7