Smart Guy is an American sitcom created by Danny Kallis. The series ran on The WB for three seasons from April 2, 1997 to May 16, 1999.

Premise

The show (which is set in Washington, D.C.) centers on the misadventures of boy genius T.J. Henderson (Tahj Mowry), who at the age of 10 moves from elementary school and gets transferred to Piedmont High School, where he ends up becoming a high school sophomore with 15-year-olds as his classmates. He must adjust to the life with older but not necessarily wiser high school teenagers — his brother Marcus (Jason Weaver) and Marcus's best friend Mo (Omar Gooding). He often deals with the usual missteps of trying to fit in as a kid genius, while being a small kid in high school.