TMDb/A Knight of the Seven Kin TV Binge the complete Game of Thrones prequel in one night. This acclaimed 6-episode series revitalizes the franchise a century before the original. March 8, 2026 AceShowbiz - A Knight of the Seven Kingdoms is HBO's latest standout series, now available to watch in full for the very first time. This six-episode limited series, which premiered in January 2026, presents a compact and engaging story set a century before the events of Game of Thrones.