No better example of this series wanting it both ways existed than the classic Season 4 episode about the man with Tourette's Syndrome. Still hard to figure out whether the script was attempting to shed light on and sympathy for sufferers of the syndrome, or using it as a platform for some of the biggest…

Nobody has mentioned "Midlife Crustacean" yet, where SpongeBob and Patrick take Mr. Krabs out for a night on the town and they end up going on a panty raid …in Mr. Krabs' mother's bedroom ("frilly things").

Actually, I thought the Newhart pilot was one of the funniest episodes in the entire series (a Daughters of the Revolution group finds out the inn was actually used as a brothel). And, yes, much of Season 1 was bland otherwise. And, absolutely, Julia Duffy was a great addition.
BUT …Larry, Darryl & Darryl, whose first…

How about the episode when Louie had dinner at Zena's parents for the first time.
"I bet after dinner you & I are gonna have a race to the can."

Barney Miller also improved vastly after Gregory Sierra (as Chano) departed THAT series.

No one has mentioned the episode where Louie gets back in a cab for the first time in a long time and ends up running over the old lady—a scam artist who, for the first time, failed to dodge the car in her scammery.