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When Did M*A*S*H Start and End? The Complete Air Dates

MASH is a long running television series that explores the lives of surgeons and support staff during the Korean War. The show balances intense medical drama with sharp comedy,...

Mara Ellison Jul 31, 2026
When Did M*A*S*H Start and End? The Complete Air Dates

MASH is a long running television series that explores the lives of surgeons and support staff during the Korean War. The show balances intense medical drama with sharp comedy, creating a unique tone that resonated with audiences for many years.

Viewers often ask when the series began, how long it ran, and when it concluded. The timeline of MASH reflects both changing television styles and real world historical context.

Series Timeline at a Glance

A quick overview of key dates for MASH helps contextualize its place in television history.

Event Date Network Notes
Premiere September 17, 1972 CBS First episode aired after summer preview specials
Season 5 1976 to 1977 CBS Shift toward serialized storytelling begins
Season 8 1979 to 1980 CBS Major cast changes and evolving wartime tone
Series Finale February 28, 1983 CBS Final episode titled "Goodbye, Farewell and Amen"
Spin Off 1982 CBS AfterMASH launches with former cast members

Early Seasons and Cultural Impact

In its early seasons, MASH emphasized rapid pacing and episodic cases, drawing direct inspiration from the 1970 film. The Korean War backdrop allowed the writers to explore themes of duty, ethics, and the absurdity of conflict while maintaining broad appeal.

Strong ratings during the first few years established the show as a central part of prime time television. Audiences responded to the blend of medical procedure detail, character driven humor, and moral questions.

Evolution of Storylines and Characters

As the series progressed, MASH shifted toward longer narrative arcs and deeper exploration of characters such as Hawkeye, Margaret, and Radar. Storylines began to address post traumatic stress, moral injury, and the psychological cost of war in more explicit ways.

The evolving format included more serialized elements, allowing events in one episode to affect the next. This continuity gave the later seasons a more novel like structure compared to the earlier, more self contained episodes.

Decline, Cancellation, and Legacy

By the later 1970s, changing viewer preferences and network scheduling pressures contributed to a gradual decline in traditional ratings. The producers responded by reshaping the cast and focusing on the emotional aftermath of combat, culminating in the historic series finale.

MASH left a lasting legacy in television storytelling, influencing medical dramas, military comedies, and serialized character studies. Its combination of humor and sobering realism remains a benchmark for long running series.

MASH Historical Context

Placing MASH within its historical context clarifies why the show felt urgent and relevant during its original run.

Aspect Details Relevance to Series
Korean War Era 1950 to 1953 Provides the backdrop for medical and moral challenges
Vietnam War Parallel 1955 to 1975 Audience drew comparisons to contemporary conflicts
Television in the 1970s Rise of ensemble casts and socially relevant drama MASH aligned with emerging trends in serious comedy
Medical Advances Triage, antibiotics, surgical techniques Informed realistic depictions of battlefield medicine
Cultural Shifts Questioning authority, anti war sentiment Reflected evolving public attitudes through character arcs

Behind the Camera and Production Choices

The production team faced the challenge of maintaining fresh storytelling over more than a decade. Writers balanced continuity with the need to introduce new characters, locations, and medical scenarios to sustain interest.

Real medical consultants reviewed scripts, and the use of authentic terminology and procedures strengthened the show's credibility. These choices helped MASH stand out among other sitcoms of the era.

Key Takeaways and Viewer Guidance

  • MASH launched on September 17, 1972, and ended on February 28, 1983.
  • The show spanned 11 seasons and produced over 250 episodes.
  • Its blend of medical drama and comedy set a template for future long running series.
  • The historical Korean War context shaped the show's tone and themes.
  • Strong character development in later seasons distinguished MASH from typical sitcoms.
  • Cultural attitudes of the 1970s and early 1980s influenced storylines and reception.
  • The finale remains a benchmark for impactful television conclusions.

FAQ

Reader questions

When did MASH first air and on which network?

MASH premiered on September 17, 1972, on CBS, following summer preview episodes that generated strong early interest.

What date was the series finale and how many viewers watched it?

The series finale, "Goodbye, Farewell and Amen," aired on February 28, 1983, and was watched by over 100 million viewers, making it one of the most watched television episodes in history.

Did the show get renewed beyond its original planned run?

Yes, MASH was renewed multiple times, ultimately running for 11 seasons due to consistently strong ratings and cultural relevance.

What major changes occurred in the later seasons compared to the early ones?

Later seasons focused more on serialized storytelling, deeper character trauma, and fewer standalone comedy episodes, reflecting shifts in both the war setting and audience expectations.

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