M*A*S*H

MAS*H (1972 – 1983)

1972 • 11 seasons • War & Politics, Drama • TV-PG

On August 9, 2026

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53.0 Attention Score

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Episode 22 — Preventative Medicine

Season 7 • M*A*S*H

Released: 1979-02-19 • War & Politics/Drama/Comedy

80%

User score

Colonel Lacy, who continues to disobey orders and causes a high number of casualties, visits his men in MASH. Hawkeye plans to stop him. Klinger plays the part of a voodoo practitioner to try and get out of the army.

Where to Stream Episode 22

Season 7 · Episode 22 · Streaming in USA

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Episodes

Episode 1
Commander Pierce
1978-09-18

Episode 2
Peace On Us
1978-09-25

Episode 3
Lil
1978-10-02

Episode 4
Our Finest Hour
1978-10-09

Episode 5
The Billfold Syndrome
1978-10-16

Episode 6
None Like It Hot
1978-10-23

Episode 7
They Call the Wind Korea
1978-10-30

Episode 8
Major Ego
1978-11-06

Episode 9
Baby, It's Cold Outside
1978-11-13

Episode 10
Point of View
1978-11-20

Episode 11
Dear Comrade
1978-11-27

Episode 12
Out of Gas
1978-12-04

Episode 13
An Eye for a Tooth
1978-12-11

Episode 14
Dear Sis
1978-12-18

Episode 15
B.J. Papa San
1979-01-01

Episode 16
Inga
1979-01-08

Episode 17
The Price
1979-01-15

Episode 18
The Young and the Restless
1979-01-22

Episode 19
Hot Lips Is Back in Town
1979-01-29

Episode 20
C*A*V*E
1979-02-05

Episode 21
Rally 'Round the Flagg, Boys
1979-02-14

Episode 22
Preventative Medicine
1979-02-19

Episode 23
A Night at Rosie's
1979-02-26

Episode 24
Ain't Love Grand
1979-03-05

Episode 25
The Party
1979-03-12

Information

Episode air date	19.02.1979
Episode runtime	25 min
Episode rating	8.00
Genres	War & Politics / Drama / Comedy
TMDB series rating	7.9
IMDb series rating	8.5
Series status	Ended
Age rating	6+
Country	US

Trailer

Additional videos

Hawkeye at M*A*S*H last press conference, part 1

Hawkeye at M*A*S*H last press conference, part 1

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Hawkeye at M*A*S*H last press conference, part 2

Hawkeye at M*A*S*H last press conference, part 2

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Cast

Alan Alda
Hawkeye Pierce

Mike Farrell
B. J. Hunnicutt

Harry Morgan
Sherman Potter

Loretta Swit
Margaret Houlihan

David Ogden Stiers

David Ogden Stiers
Charles Winchester

Jamie Farr
Maxwell Klinger

William Christopher

William Christopher
Father Mulcahy

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