"The show first aired on September 8, 1991 and the original working title for the series was called \"It's All in Your Head.\" Other cast members consisted of Molly Hagan, Yeardley Smith (also known as the voice of Lisa Simpson on \"The Simpsons\"), Ken Hudson Campbell, Rick Lawless, Peter Mackenzie & Jason Bernard. On April 21, 1994, the series ended after 3 seasons and 72 episodes."@en . . "Herman's Head"@en . . . . "The show first aired on September 8, 1991 and the original working title for the series was called \"It's All in Your Head.\" Other cast members consisted of Molly Hagan, Yeardley Smith (also known as the voice of Lisa Simpson on \"The Simpsons\"), Ken Hudson Campbell, Rick Lawless, Peter Mackenzie & Jason Bernard. On April 21, 1994, the series ended after 3 seasons and 72 episodes."@en . .