Season 1 of Animal Hospital premiered on 1994-08-29.

Season 2 of Animal Hospital premiered on 1995-01-05.

Season 3 of Animal Hospital premiered on 1995-10-05.

Season 4 of Animal Hospital premiered on 1996-05-30.

Season 5 of Animal Hospital premiered on 1996-09-12.

Season 6 of Animal Hospital premiered on 1997-03-20.

Season 7 of Animal Hospital premiered on 1997-09-25.

Season 8 of Animal Hospital premiered on 1998-03-19.

Season 9 of Animal Hospital premiered on 1998-07-19.

Season 10 of Animal Hospital premiered on 1998-10-08.

Season 11 of Animal Hospital premiered on 1999-03-16.

Season 12 of Animal Hospital premiered on null.

Season 13 of Animal Hospital premiered on 2000-03-16.

Season 14 of Animal Hospital premiered on 2000-10-03.

Season 15 of Animal Hospital premiered on 2001-03-14.

Season 16 of Animal Hospital premiered on 2001-10-05.

Season 17 of Animal Hospital premiered on 2002-03-21.

Season 18 of Animal Hospital premiered on 2002-10-23.

Season 19 of Animal Hospital premiered on 2003-10-01.