A live-action and animated television special featuring clips from past episodes and spin-offs combined with new animation and musical segments.
5/20/1986
12/13/2006
10/7/1971
11/27/1977
4/12/1996
11/21/2003
1/17/2003
11/3/1977
10/2/2015
11/14/2003
11/14/2004
11/24/2017
1/1/1974
12/30/1939
9/1/1944
11/7/1947
12/13/2018
11/13/1940
11/20/2007
4/18/1959
6/10/2004