The BEST episodes written by Jim Dunne
#1 - Grandma Nussbaum
Happy Days - Season 9 - Episode 14
Fonzie and Chachi's grandmother becomes very upset at them for suggesting that she move into a retirement home after they observe some signs of senility.
#2 - King Richard's Big Night
Happy Days - Season 7 - Episode 10
Richie is chosen the 1961 Delta Gamma King and acts like a jerk after receiving the honor. However, nobody knows that the reason he acts the way he does is a result of someone slipping a pill into his ginger ale. The next day, everyone is angry with Richie, but he is confused because he doesn't remember anything that happened after being crowned king.
#3 - Broadway It's Not
Happy Days - Season 8 - Episode 12
Chachi becomes jealous after seeing a kissing scene involving Joanie and another actor during rehearsals for a school musical. Fonzie also considers quitting as director.
#4 - American Musical
Happy Days - Season 8 - Episode 22
Chachi struggles with an essay on the causes, hardships, and influences of immigration until Fonzie tells him several stories in a series of musical vignettes.