Happy Days (season 10)

Fonzie becomes weary about his inability to become happy by plowing through dates. He finds love at first sight with a woman he sees on an escalator, although he doesn't catch her name, and orders everyone at Arnold's to find her. Potsie recognizes the woman from his dad's gas station as Ashley Pfister, so Fonzie presents himself at her apartment in hopes that she will fall in love with him. Ashley proves to be unlike any other woman that Fonzie has ever dated, as she does not immediately fall under his influence.

Joanie wants to move to Chicago with Chachi and attend Northwestern University.

Notes: Erin Moran and Scott Baio appear in this episode to set up the spin-off.

The first episode of the season produced.

Howard and Marion try to keep busy in their newly empty house, while Fonzie decides to sell his half of Arnold's.

Note: This episode marked the return of Pat Morita as Arnold, the original proprietor of Arnold's Drive-In Restaurant.

Special guest stars: Harriet Nelson and Jane Wyatt.

Fonzie takes Heather to the circus, as Howard's niece K.C. moves in.

First appearance of: K.C. Cunningham (Crystal Bernard).

An old enemy (special guest star Tom Hanks) exacts revenge on Fonzie at an inopportune time.

Joanie and Chachi have a chance to appear on TV playing folk music; Fonzie is upset that folk is usurping rock n' roll's place in people's hearts and minds.

Guest stars: Scott Baio as Chachi Arcola and Erin Moran as Joanie Cunningham

Ready to settle down, Fonzie declares his love for Ashley by asking her to go steady, but when an old girlfriend shows up needing some help, it causes problems. Meanwhile, Howard gives K.C. driving lessons.

Guest star: Scott Baio as Chachi Arcola

Note: This episode features a return appearance by the statuesque Paula Petralunga (Melinda Naud), who had appeared in a few Season 3 episodes as Fonzie's most spectacular conquest.

Melvin Belvin takes K.C. to Arnold's costume ball.

Business is down at Cunningham's Hardware, leading Howard to consider some very difficult options, one of which includes closing the store for good.

Guest star: Erin Moran as Joanie Cunningham

When Heather asks Santa to patch up the rift between her mother and grandparents, Fonzie decides to make her wish come true. In the subplot, Howard's brother, Dick, is visiting.

Roger's old flame (Wendy Schaal) fans the fire when she returns to town.

Ashley introduces Fonzie to her estranged family.

Flip is a passenger in a car that is involved in a hit-and-run accident. The victim: Heather.

Final appearance of: Scott Berenstein as Melvin Belvin

K.C. dates a convict who is on work-release to Fonzie's garage.

The Fonz gets a record producer interested in Joanie and Chachi's music, but he's less excited about their band.

Guest stars: Scott Baio as Chachi Arcola and Erin Moran as Joanie Cunningham, as well as members of the cast of Joanie Loves Chachi, including Derrel Maury, Winifred Freedman and Robert Pierce.

Fonzie and Ashley celebrate their six months together at the Cunningham's, looking back on their relationship via "flashback scenes" (most of which were not actually part of the episode where they met).

Note: The last episode of the season produced.

Fonzie, Potsie and Roger report for Army Reserve duty. Fonzie promises Heather that he'll be at her birthday party, until he learns that Officer Kirk is their commanding officer.

Final appearance of: Ed Peck as Officer Kirk

Fonzie becomes the center of attention at the wedding of a friend (Peter Scolari).

Guest star: Al Molinaro as Father Anthony Delvecchio

Fonzie babysits Heather the night of a big fight on TV, as Joanie and Chachi return to Milwaukee.

Note: This episode marks the return of Erin Moran and Scott Baio to the series, due to the impending cancellation of Joanie Loves Chachi.

Joanie decides to move back in with her parents.

Guest stars: Al Molinaro as Al Delvecchio and Ellen Travolta as Louisa Delvecchio

Final appearance of: Linda Purl as Ashley Pfister and Heather O'Rourke as Heather Pfister.

Jenny sets her sights on dating an Olympic swimmer. Meanwhile, Fonzie wants a pool.

Final appearances of: Crystal Bernard as K.C. Cunningham and Billy Warlock as Flip Phillips