Synopsis
In the third of Sky One's specials celebrating 20 years of "The Simpsons", Ricky Gervais speaks to a selection of the huge number of celebrities who have guest-starred on the show over the years.
In the third of Sky One's specials celebrating 20 years of "The Simpsons", Ricky Gervais speaks to a selection of the huge number of celebrities who have guest-starred on the show over the years.