Season
- Season 20 2011-01-12
- Season 19 2010-01-13
- Season 18 2009-01-07
- Season 17 2008-01-16
- Season 16 2007-12-12
- Season 15 1994-05-17
- Season 14 1992-01-21
- Season 13 1991-09-03
- Season 12 1990-02-22
- Season 11 1989-03-23
- Season 10 1988-02-11
- Season 9 1986-09-04
- Season 8 1984-02-14
- Season 7 1983-01-04
- Season 6 1982-01-07
- Season 5 1981-06-11
- Season 4 1980-04-17
- Season 3 1979-08-09
- Season 2 1978-03-07
- Season 1 1976-11-01
