The episode, titled "My Big Fat Gypsy Knightmare," revolves around a character named Eve who fears becoming conventional like her parents.
Originally scheduled to air as the fourth episode, it was later delayed until the end of the season to allow for additional deliberation by Channel 4 executives regarding its content.
Married to houseproud wife Wendy, they are parents to three very different children, man-child Dusty, amiable and dimwitted Jason and 'Emo' Eve.
This work is done by Rough Draft Studios in Los Angeles and South Korea, and is the first show were they are credited as a production company.
But thanks to a misunderstanding, Simon Cowell thinks her parents are dead, and the sympathy vote looks like it might propel her all the way to the final (where she'll be up against an asthmatic girl in a wheelchair who plays the violin).
Shamed, Edgar resolves to man up and goes to his local gym, but decides taking steroids will be quicker and easier.
Ken has a crisis of conscience about manufacturing food that makes people fat and contemplates selling up to his arch-nemesis and occasional squash partner Richard Branson.
Developed by Leamington Spa digital agency fish in a bottle, it is a multi-chapter game that is meant to introduce the characters, and features the full voice cast from the show.