Season 1

1976-01-06

Season 2

1977-01-08

Season 3

1978-01-07

Season 4

1979-01-06

Season 5

1980-01-05

Season 6

1981-01-03

Season 7

1983-12-24

Season 8

1992-01-04

Season 9

1993-01-09

Season 10

1994-01-15

Season 11

1995-01-07

Season 12

1996-06-08

Season 13

2006-12-23

Season 14

2007-02-08

Season 15

2008-01-01

Season 16

2013-12-07

Season 17

2014-06-01

Season 18

2015-04-19