Specials
Episodes count: 6
Season 1
Episodes count: 1
Episode 1
Season 2 (1972)
Episodes count: 0
Season 3 (1973)
Season 4 (1974)
Season 5 (1975)
Season 6 (1976)
Season 7 (1977)
Season 8 (1979)
Season 9 (1980)
Season 10 (1981)
Season 11 (1982)
Season 12 (1983)
Season 13 (1984)
Episodes count: 39
Season 14 (1985)
Season 15 (1986)
Episodes count: 40
Season 16 (1987)
Season 17 (1988)
Season 18 (1989)
Season 19 (1990)
Season 20 (1991)
Episodes count: 42
Season 21 (1992)
Season 22 (1993)
Season 23 (1994)
Season 24 (1995)
Season 25 (1996)
Episodes count: 41
Season 26 (1997)
Season 27 (1998)
Season 28 (1999)
Season 29
Episodes count: 20