HBO's A Knight of the Seven Kingdoms, the most book-faithful Game of Thrones spinoff, premiered Sunday, January 18, 2026, at 10 p.m. ET/PT, with six half-hour episodes available to stream on Max. Peter Claffey stars as Ser Duncan the Tall alongside Dexter Sol Ansell as his squire Egg in this adaptation of George R.R. Martin's Tales of Dunk and Egg novellas, set nearly a century before the original series.
The series, which began production in 2025 under showrunner Ira Parker following the success of House of the Dragon, offers a lighter tone emphasizing tournaments, chivalry, and Targaryen-era intrigue directly from Martin's novellas. It introduces viewers—as highlighted in TVLine's What to Watch column—to these unlikely heroes navigating great destinies, powerful foes, and pivotal events in Westeros history, with familiar elements like dragons and noble houses through fresh characters.
The premiere anchored HBO's busy January lineup on a packed Sunday for TV and streaming, competing with returns like The Pitt, The Night Manager Season 2, and Bridgerton Season 4. Specific plot details for the debut episode remain under wraps, but the show promises the intrigue and fantasy elements fans expect from Martin's works, expanding the Game of Thrones universe.