Seasons

Specials

January 1, 1970 | 2 Episodes

Season 1

February 17, 1976 | 8 Episodes

Season 2

January 12, 1977 | 8 Episodes

Season 3

December 29, 1977 | 8 Episodes

Season 4

April 17, 1980 | 7 Episodes

Season 5

March 3, 1981 | 8 Episodes

Season 6

February 2, 1982 | 8 Episodes

Season 7

January 19, 1983 | 8 Episodes

Season 8

May 8, 1984 | 8 Episodes

Season 9

May 10, 1985 | 8 Episodes

Season 10

February 21, 1986 | 8 Episodes

Season 11

February 10, 1987 | 8 Episodes

Season 12

March 1, 1988 | 8 Episodes

Season 13

June 25, 1989 | 8 Episodes

Season 14

July 15, 1990 | 8 Episodes

Season 15

July 14, 1991 | 8 Episodes

Season 16

August 16, 1992 | 8 Episodes

Season 17

October 24, 1993 | 8 Episodes

Season 18

September 25, 1994 | 8 Episodes

Season 19

November 11, 1995 | 8 Episodes

Season 20

September 27, 1996 | 8 Episodes

Season 21

January 3, 1998 | 8 Episodes

Season 22

January 2, 1999 | 11 Episodes

Season 23

January 1, 1970 | 7 Episodes

Season 24

December 7, 2008 | 2 Episodes

Season 25

December 15, 2009 | 4 Episodes

Season 2011

December 10, 2011 | 3 Episodes