A Different World (REUNION) A Different World is an American sitcom television series and a spin-off of The Cosby Show. It aired for six seasons on NBC from September 24, 1987 to July 9, 1993. The series originally centered on Denise Huxtable (Lisa Bonet) and the life of students at Hillman College, a fictional historically black college in Virginia. It was inspired by student life at historically black colleges and universities. | River City Entertainment Group (RCEG)