Season 1

1971-05-13

Season 2

1972-02-03

Season 3

1973-01-25

Season 4

1974-01-24

Season 5

1975-01-23

Season 6

1976-01-24

Season 7

1977-01-15

Season 8

1978-01-05

Season 9

1979-01-25

Season 10

1980-01-24

Season 11

1981-01-22

Season 12

1982-01-28

Season 13

1983-01-13

Season 14

1984-01-26

Season 15

1985-01-24

Season 16

1986-01-23

Season 17

2011-07-23

Season 18

2013-09-26