House M.D. broadcast 177 episodes during its complete television run.
The series aired on Fox from 2004 through 2012 and was organized into eight seasons. Most episodes followed House and his diagnostic colleagues as they investigated an unusual illness, tested competing explanations, and revised their diagnoses when new evidence appeared.
The episode total includes the regular broadcast installments across all eight seasons. It should not be confused with the number of seasons, the number of episodes in the first season, or the count of episodes featuring one particular diagnostic team. Cast departures and changing production arrangements meant that the composition of House’s department shifted over time.
The final episode was broadcast in 2012. Counting all episodes gives 177, a figure commonly used in series references and episode lists. The total also includes the show’s two-part or specially structured installments as episodes in the television run, rather than counting only episodes with completely separate story titles.