Season 1
1966 • 28 episodios
La temporada 1 de Mission: Impossible se estrenó el 17 de septiembre de 1966.
The first season of the original Mission: Impossible originally aired Saturdays at 9:00-10:00 pm on CBS from September 17, 1966 to January 7, 1967 and at 8:30-9:30 pm from January 14 to April 22, 1967.
Season 2
1967 • 25 episodios
La temporada 2 de Mission: Impossible se estrenó el 10 de septiembre de 1967.
The second season of the original Mission: Impossible originally aired Sundays at 10:00-11:00 pm on CBS from September 10, 1967 to March 17, 1968.
Season 3
1968 • 25 episodios
La temporada 3 de Mission: Impossible se estrenó el 29 de septiembre de 1968.
The third season of the original Mission: Impossible originally aired Sundays at 10:00-11:00 pm on CBS from September 29, 1968 to April 20, 1969.
Season 4
1969 • 26 episodios
La temporada 4 de Mission: Impossible se estrenó el 28 de septiembre de 1969.
The fourth season of the original Mission: Impossible originally aired Sundays at 10:00-11:00 pm on CBS from September 28, 1969 to March 29, 1970.
Season 5
1970 • 23 episodios
La temporada 5 de Mission: Impossible se estrenó el 19 de septiembre de 1970.
The fifth season of the original Mission: Impossible originally aired Saturdays at 7:30-8:30 pm from September 19, 1970 to March 6, 1971. "The Merchant" originally aired Wednesday, March 17, 1971 at 7:30-8:30 pm.
Season 6
1971 • 22 episodios
La temporada 6 de Mission: Impossible se estrenó el 18 de septiembre de 1971.
The sixth season of the original Mission: Impossible originally aired Saturdays at 10:00-11:00 pm on CBS from September 18, 1971 to February 26, 1972.
Season 7
1972 • 22 episodios
La temporada 7 de Mission: Impossible se estrenó el 16 de septiembre de 1972.
The seventh and final season of the original Mission: Impossible originally aired Saturdays at 10:00-11:00 pm on CBS from September 16 to December 9, 1972 and Fridays at 8:00-9:00 pm from December 22, 1972 to March 30, 1973.