Home Improvement — Season 4

Jill is laid off and decides to go back to college, causing Tim to become afraid that he will lose Jill to more intelligent men.

Jill dents the car, so Tim decides to fix it but he accidently drops a three ton beam on it and tries to hide it from Jill. Meanwhile, Brad and Randy are kicked off of the school bus for gluing Vinnie McGurn's, a bully's, butt.

Tim begins concerned about his health when his 40th birthday nears and Harry, the owner of Harry's Hardware, has a heart attack.

When Tim and Jill find out Mark is having trouble at school, they think it is because they neglect him, but the real reason is that he needs glasses.

Tim's brother Marty comes by to tell him that he's leaving his wife and kids. But Tim's advice turns Marty against him. Meanwhile, Tim creates a hole in the floor and Jill has trouble working on her psychology report.

Harry offers to sell Tim 20 percent of his hardware store (that Harry's brother is selling). Jill doesn't let Tim buy it, so Al decides to purchase it. When Al becomes obsessed with the store, this drives everyone crazy, even Ilene when he skips a date with her, and Tim decides to confront him about it.

After taping Jill's speech, he accidentally leaves the record button on when he critiques her speech. After Jill sees the video, Tim reads some of her psychology books and tapes a fake conversation with his buddies, complimenting Jill.

Randy feels like the black sheep when Tim spends time with Brad and has him as a special guest on Tool Time.

At Thanksgiving dinner with the Taylors, Wilson announces he is moving, but Tim gives him advice in the hopes Wilson will decide to stay.

Mr. Leonard, Tim's high school shop teacher, comes to visit, but gets angry and leaves after guest starring on an episode of Tool Time.

When Tim has a shot at getting his hot rod in an automotive magazine, Jill becomes busy and accidentally leaves it out in the snow.

Marty and his wife and kids, and Jill's parents come to visit and Tim and Jill try to solve their marital problems. Tim tries to beat Doc Johnson in the Christmas lighting contest.

After Brad takes a paper route, he has trouble getting up and doing homework but doesn't want to quit because it will disappoint Tim.

Tim decides to sell his hot rod and buys one to rebuild. Meanwhile, Jill takes Randy shopping for clothes and he is afraid that Jill will embarass him in front of someone he knows.

Tim has a Super Bowl party for his friends while Jill is sick with the flu.

When Al is published as one of Detroit's "Most Eligible Bachelor" in a magazine, women begin flocking all over him and he starts to ignore Ilene. Mark has to write a report on the most interesting person he knows, and he writes it on Wilson instead of Tim.

At Randy's party, Tim's overpolished dance floor causes Michelle, Randy's crush, to sprain her ankle.

Benny, Tim's friend, moves into his aunt's house while she's away. But a gas leak causes the house to blow up and Benny must stay with the Taylors.

When Marty and Nancy are staying with the Taylors, Tim walks in on Nancy in the shower, thinking she is Jill. Meanwhile, Randy goes to a bar mitzvah and must come home after he splits his trousers.

Tim insults Jill on Tool Time, ruins dinner, and drops her ring down the furnace.

Tim and Al scalp tickets to a hockey game when Tim can't go, but they get arrested and Jill and Ilene come to bail them out. Meanwhile, Mark paper maches Wilson's face when he watches the boys while Tim and Jill are gone.

Despite Jill's advice, Tim stays up all night watching Tool Time tapes because of his upset stomach from eating too much Polish food.

Despite Jill's advice, Tim stays up all night watching Tool Time tapes because of his upset stomach from eating too much Polish food.

Carrie, Jill's sister, comes to observe Jill's life to see if she would like to get married. Marty, Tim's brother, moves to Detroit.

Al tells Tim and Jill that one of their boys may have stolen a pocket knife. They don't believe their boys would steal, but they find the knife in Mark's pocket in the laundry.

Jill hooks Wilson up for his first date in twenty years and Tim gives him advice.