In which year did House M.D. first air on Fox?

House M.D. first aired on Fox in 2004.

The series premiered on November 16, 2004. Its first episode introduced Gregory House, his diagnostic team, and the fictional Princeton-Plainsboro Teaching Hospital. The program used difficult medical cases to establish House’s unconventional methods and his refusal to accept easy explanations.

The 2004 premiere placed House M.D. among a wave of successful American network dramas that combined procedural storytelling with a strongly defined central character. Although the cases provided the weekly structure, the show also developed long-running stories about House’s relationships, pain, addiction, and professional conduct.

The year is sometimes confused with 2005 because the series became a major international hit after its first season and received prominent award attention during subsequent television award cycles. It also continued for several calendar years after its premiere. The correct year refers to the original United States broadcast on Fox, not the date when the program reached a particular international market.