Is Y Deis coming back?

Y Deis is currently on a break between seasons. The most recent episode aired on March 25, 2026, and there is no confirmed return date at this time.

Y Deis was a quiz show that premiered on November 26, 2025, on S4C. It featured a competition where three teams of two competed across multiple rounds, testing their general knowledge, skills, and strategic thinking. The show culminated in a final challenge where the winning team faced a high-pressure quiz against the clock to win the Jackpot.

The series was hosted by James Williams, who served as the presenter. The show had a runtime of approximately 25 minutes per episode.