Season 1 of Groland premiered on 1992-09-05.

Season 2 of Groland premiered on 1993-01-09.

Season 3 of Groland premiered on 1994-09-01.

Season 4 of Groland premiered on 1995-09-01.

Season 5 of Groland premiered on 1996-09-01.

Season 6 of Groland premiered on 1997-09-01.

Season 7 of Groland premiered on 1998-09-01.

Season 8 of Groland premiered on 1999-09-01.

Season 9 of Groland premiered on 2000-09-01.

Season 10 of Groland premiered on 2001-09-01.

Season 11 of Groland premiered on 2002-09-08.

Season 12 of Groland premiered on null.

Season 13 of Groland premiered on null.

Season 14 of Groland premiered on null.

Season 15 of Groland premiered on null.

Season 16 of Groland premiered on 2007-09-01.

Season 17 of Groland premiered on 2008-09-06.

Season 18 of Groland premiered on null.

Season 19 of Groland premiered on 2010-09-04.

Season 20 of Groland premiered on null.

Season 21 of Groland premiered on null.

Season 22 of Groland premiered on 2013-09-07.

Season 23 of Groland premiered on 2014-09-06.

Season 24 of Groland premiered on 2015-10-24.

Season 25 of Groland premiered on 2016-09-10.

Season 26 of Groland premiered on 2017-09-09.

Season 27 of Groland premiered on 2018-09-08.

Season 28 of Groland premiered on 2019-09-07.

Season 29 of Groland premiered on 2020-09-07.

Season 30 of Groland premiered on 2021-09-05.

Season 31 of Groland premiered on 2022-09-17.

Season 32 of Groland premiered on 2023-10-01.

Season 33 of Groland premiered on 2024-09-29.