My condolences.
To their credit, Art Carney and Bea Arthur are definitely not phoning it in despite the dumpster fire raging all around. Harvey Korman does pretty good too despite some wild missteps.
With better editing and tightening-up it might not be so bad. But all those long stretches of Wookiees roaring at each other, the "porn" scene with Diahann Carroll, etc those definitely needed jettisoning. It could have easily been an hour long instead of the two-hour travesty it became.