|Dily's Big Surprise|
|Series 6, Episode 20|
|Air Date||March 7, 2008|
|Next||Day at the Seaside|
Dilys' Big Surprise is the twentienth episode of the sixth season. It was written by Jennifer Upton.
Norman tries to make his Mum's birthday special by planning a surprise party and making a cake with Mike, but ends up causing a fire.