Season 5

1. Where's Charlie?

1990-09-11

Charlie doesn't return for the new school year and the Kids are wondering where's Charlie? Charlie found an acting gig and left and now the students have a new teacher, Billy MacGregor.

2. Twelve Angry Nerds

1990-09-18

When Alan is caught cheating, Billy has the class act as a jury to decide his punishment.

3. The Heartbreak Nerd

1990-09-25

Arvid goes out with gorgeous Viki.

4. And Then There Were None

1990-10-02

Arvid's infectious flu may keep the class from performing in a Shakespeare competition.

5. Getting Personal

1990-10-09

Billy tries the personals ads.

6. Napoleon Blown Apart

1990-10-16

Inspired by his French class, Eric goes to ""find himself"" in Paris.

7. Billy's Big One

1990-10-23

Billy fakes a heart attack to circumvent a health-insurance bureaucrasy; the IHP girls try writing a romance novel.

8. Dead Men Don't Wear Pocket Protectors (1)

1990-10-30

After Billy is robbe, he has the class write papers on gun control, leading Arvid to a harrowing experience when he buys a gun for the assignment. (Part 1 of 2)

9. Dead Men Don't Wear Pocket Protectors (2)

1990-11-06

Bully Zach may have Arvid's missing gun. (Part 2 of 2)

10. Fillmore vs. Billy Jean's

1990-11-13

The IHP class behaves obnoxiously when their bus breaks down at a rural truck stop.

11. Be My Baby . . . Sitter

1990-11-20

Jasper's overprotective parents hire a babysitter for him -- and to his mortification, it turns out to be Sarah.

12. Dancing Fools

1990-11-27

Billy and Bernadette take dance lessons at the studio where Alex teaches, and where he's pursued by a woman.

13. My Son the Primate

1990-12-04

Arvid trains a chimp at his part-time pet store job and, rather than let it be sold, hides it in the classroom.

14. The Importance of Being Alex

1990-12-11

Simone's reputation suffers when Alex lies to his friends about a romance with her.

15. Viki's Torn Genes

1990-12-18

At Christmas, Billy helps Viki find her birth mother, but the woman doesn't want to see her.

16. The Last Waltz

1991-01-08

T.J. turns down Aristotle's invitation to the senior prom.

17. Most Likely to Be Forgotten

1991-01-15

The kids work on their yearbook, with Eric beginning to regret not having participated more extracurricularly.

18. The Strange Case of Randy McNally

1991-05-28

To save Dennis after a prank, Billy creates a fictional student -- who apparently gets the MIT scholarship Dennis wanted.

19. My Dinner With Darlene

1991-06-04

Darlene promises to treat the class to an elaborate farewell dinner, but then finds her credit card revoked.

20. The Phantom of the Glee Club

1991-06-11

The class learns T.J. is more than just a contemporary-style musician when Billy discovers her operatic talent.

21. It Couldn't Last Forever (1)

1991-06-18

With a wrecking ball ready to demolish the school, the IHP class waits to fund out who's to be valedictorian. (Part 1 of 2)

22. It Couldn't Last Forever (2)

1991-06-25

The IHP class graduates, with T.J. as valedictorian. (Part 2 of 2, and series finale)