In the first of Sky One's specials celebrating 20 years of "The Simpsons", Ricky Gervais takes you behind the scenes to see how the show is made, talking to those who put each episode together, plus celebrity fans like Simon Cowell and Hugh Hefner.
| Name | Type | Role | |
|---|---|---|---|
| Hugh Hefner | Guest Star | ||
| Ricky Gervais | Guest Star | ||
| Simon Cowell | Guest Star |