QI

QI has maintained a steady Annual rhythm for 21 years, typically returning in September. Since its inception in 2003, the series has followed the alphabet with remarkable consistency, transitioning from BBC Two to BBC One as it became a national institution. The production cycle is highly predictable, with filming occurring in the spring and early summer months to ensure the show is ready for its traditional late-year slot.

The show serves as a reliable anchor for the BBC schedule, rarely deviating from its autumnal launch window. While early series occasionally debuted in mid-summer, the modern era under Sandi Toksvig has solidified the September or October premiere pattern. This stability is bolstered by the show's extended XL versions and compilation episodes, which maintain the brand's presence across the broadcasting calendar year after year.