T.J. skips grades and enters high school at age 10.

In the opener, T.J. has trouble learning the ropes outside the classroom and pays the price for breaking ""The Code,"" which states you never rat on a friend. The friend in question is Mo, a star player on the school's basketball team. When T.J. tattles on Mo for smoking in the boys room, Mo is suspended from the team and misses an important game. Ostracized and unhappy, T.J. hatches a misguided plot to make amends by sabotaging the rival team's report cards.

Two twin sisters move to the school. Marcus gets a date with the pretty cheerleader, but unknowingly mistakes her for her smart twin later. As he realizes how much he likes them both, Marcus sets up a plan to date them both. The cheerleader will date Marcus, while the intelligent one will date ... Marquis.

When the keyboard player in Marcus' band breaks his finger, T.J sits in. Meanwhile, Yvette is mortified when her friend admits having a crush on her dad.

When Mo and T.J. are teamed up by their biology teacher to observe animal behavior, T.J. decides they'll watch his brother Marcus and sister Yvette.

T.J. earns a spot on the game show Knowledge College in the hope that his winnings will help defray household expenses, but the pressure may be too much.

Yvette is convinced T.J. is dying to go to the prom, despite his protestations, so Floyd gets him a date -- then Marcus gets him a date -- then Yvette gets him a date....

TJ's skill in chess gives him the chance to play against a computer, Socrates, that's supposed to be unbeatable in chess. Marcus plans to win big on money bets.

T.J. develops his first crush on a beautiful substitute teacher; Marcus is accidentally offered a university scholarship.

Floyd starts having doubts when T.J. bonds with a new astronomy teacher, making him question his importance in T.J.'s life. Meanwhile, Marcus and Mo find another student exploiting their personal style by photographing them for a fashion magazine against their wishes.

Yvette has a recurring dream in which she marries Mo. Meanwhile, Marcus dreams up a scheme to make money to buy a new sound system.

Marcus and his girlfriend Dana break up, prompting her to ask Mo to intervene. Meanwhile, T.J. faces gym class - and the locker room - for the first time.

T.J.'s call to a political talk show prompts an invitation to appear as a guest -- and to replace one of the regular panelists permanently.

T.J. is accepted into Mensa, where Floyd meets an attractive divorcée, but T.J. can't stand her uppity son Blake and gets into a brawl. Meanwhile, Marcus and Mo become hairstylists.

To enlighten Mo about feminism, Yvettle buys him at a school slave auction. Meanwhile, T.J. helps Coach Gerber do his taxes.

T.J. learns a hard lesson about office politics while taking part in a work-study program that lands him in a lofty position at an electronic company. Floyd lays down the law when he feels that T.J. is spending too much time at work and not enough time with the family.

T.J., Marcus and Mo decide to do a music video for their video-production class, with T.J. directing. Meanwhile, Yvette falls for a hunky swimmer who's a little shallow.

T.J. decides he wants to be a reporter, but since answering to Yvette as the editor of the school paper is more than he can take, he starts his own rival publication.

When the basketball coach quits his job in the middle of a game, the team must come up with another coach or forfeit - so T.J. is elected.

T.J. ghostwrites love letters for Marcus to Nina, the new girl in their literature class - and winds up having to ghostwrite love letters for Nina to Marcus, and vice versa.

T.J. falls for a girl at the arcade but falls short in the style department, so he tries a new look -- one his dad does not approve.

T.J. qualifies as an intern at the Primate Intelligence Research Project. Meanwhile, Marcus and Mo try to get rich selling "nutritional, energy supplement" candy bars.

T.J. lands a gig as a dancer in a music video by Destiny's Child and gets an offer to tour with them for a year, but his dad isn't so sure about the idea.

T.J. hooks up his dad with a date from a computer dating service, but is uncomfortable when their relationship heats up.

T.J. defends Mo when he's accused of setting a fire to the school's chemistry lab where his most hated teacher was working. Meanwhile, Marcus tries to embellish his non-speaking part in the school play.