He is well known for his yelling and screaming on exciting plays. He was employed by CBS Sports. He was also a play-by-play announcer for the Minnesota Timberwolves. He called Big East basketball for ESPN Plus, college basketball and college hockey for ESPN. He hosted Black College Sports Today in 1991. Johnson called Canadian Football League games for ESPN. He also called NFL games for CBS until 2011. Johnson was first paired up with Steve Tasker, then Brent Jones. He got back together with Steve Tasker in 2005 until his departure for Fox Sports in 2011.