One Gavin and Stacey let slip a huge spoiler about the hit Christmas special - but it went undetected for months

Gavin and Stacey star Laura Aikman, who played Smithy's fiancee Sonia in the hit show, dropped a huge hint about her character in a resurfaced interview

Gavin and Stacey came to its emotional end with a feature-length finale on Christmas night. Seventeen years after the much-loved BBC comedy arrived on our screens, its climax was the most eagerly anticipated 90 minutes of the festive schedules.