TMDb/Saturday Night Live UK Celebrity Live from London! Sky's Saturday Night Live UK debuts with a fresh cast of rising comedy stars. Watch the first teaser trailer now. April 21, 2026 AceShowbiz - Saturday Night Live UK is gearing up for its debut as Comcast-owned Sky unveils the very first teaser trailer for the British adaptation of NBC's legendary sketch comedy show. The brief 30-second preview showcases the cast members walking along a London street before entering a venue prominently featuring a glowing neon sign that reads Saturday Night Live UK.