Yup, and if I remember correctly the Meathead never got a real job. I think he went to California and became a professor...
And he also cheated on Gloria. So he lived off her parents like a leech, then cheated on their daughter. Mike Meathead or whatever his name was was probably one of my least favorite characters ever.
In the spin-off “Gloria,” they had moved into a commune where he cheated on her. She ends up working for Burgess Meredith at an animal clinic. She’s got sole custody of “Little Joey.” The show didn’t last long but it had a great scene where Meredith’s character and another man play checkers with shots of alcohol.