Nick Jr. (block)

Nick Jr. (sometimes disambiguated as Nick Jr. on Nickelodeon) is a programming block that aired on Nickelodeon from January 4, 1988.
Current Programming
Adventures of the Little Koala (January 6, 1988 - August 4, 1993)
Adventures of the Little Prince (January 4, 1988 - January 15, 1990)
Allegra's Window (October 24, 1994 - February 15, 1999)
The Backyardigans (October 11, 2004 - February 15, 2010)
Belle and Sebastian (January 4, 1988 - September 1, 1989)
Bernard's Watch (November 13, 1995 - August 24, 2006)
Blue's Clues (September 8, 1996 - May 15, 2006)
Blaises Home (Spetmpter 7, 2002 - May 5, 2011)
Blue's Room (August 2, 2004 - December 4, 2007)
Bob the Builder (January 15, 2001 - May 15, 2006)
The Busy World of Richard Scarry (July 3, 1995 - June 19, 2006)
Cappelli & Company (April 5, 1993 - June 10, 1994)
Cubeez (July 23, 2001 - August 28, 2006)
Doctor Snuggles (January 6, 1988 - September 10, 1990)
Dora the Explorer (August 14, 2000 - October 19, 2015)
The Elephant Show (January 6, 1988 - September 1, 1994)
Eureeka's Castle (September 4, 1989 - June 10, 1996)
Franklin (January 11, 1999 - June 19, 2006)
Fred Penner's Place (September 4, 1989 - August 16, 1993)
Go, Diego, Go! (September 6, 2005 - June 13, 2011)
Grimm's Fairy Tale Classics (June 20, 1992 - September 8, 2005)
Gullah Gullah Island (July 6, 1994 - August 17, 2006)
Harry and Toto (October 14, 2008 - August 19, 2013)
Hello Kitty's Furry Tale Theater (September 6, 1993 - April 24, 2006)
Jack's Big Music Show (September 6, 2005 - January 21, 2008)
King (October 27, 2003 - September 15, 2005)
Kipper (February 8, 1999 - July 25, 2005)
LazyTown (August 16, 2004 - July 28, 2008)
Little Bear (November 6, 1995 - August 18, 2003)
Little Bill (November 28, 1999 - September 5, 2005)
The Little Bits (May 6, 1991 - June 10, 1996)
Maggie and the Ferocious Beast (June 5, 2000 - September 5, 2005)
Maisy (February 11, 1999 - September 11, 2006)
Maple Town (January 6, 1988 - September 5, 2005)
Max & Ruby (October 21, 2002 - November 18, 2013)
Maya the Bee (January 1, 1990 - August 21, 2006)
Miss Spider's Sunny Patch Friends (September 7, 2004 - July 28, 2008)
Muppet Babies (October 1, 1992 - February 12, 1999)
The Muppet Show (April 5, 1994 - September 5, 2005)
Nanalan' (November 28, 1999 - June 20, 2005)
Ni Hao, Kai-Lan (February 7, 2008 - May 17, 2011)
Noozles (November 14, 1988 - September 8, 1994)
Olivia (January 26, 2009 - December 19, 2011)
Oobi (April 7, 2003 - August 22, 2005)
Oswald (August 20, 2001 - September 5, 2005)
The Raggy Dolls (April 5, 1996 - August 14, 2006)
Rainbow Brite and the Color Kids (September 15, 1996 - December 5, 2005)
Rubbadubbers (September 2, 2003 - September 5, 2005)
Rugrats (September 5, 1994 - August 25, 1997)
Rupert (September 21, 1995 - March 12, 2001)
Teletubbies (March 31, 1997 - June 20, 2005)
Thomas & Friends (June 5, 2000 - April 16, 2007)
Today's Special (January 6, 1988 - September 17, 2002)
Tweenies (July 14, 2003 - February 20, 2006)
Wonder Pets! (March 3, 2006 - April 15, 2013)
The World of David the Gnome (January 6, 1988 - June 25, 2012)
Wow! Wow! Wubbzy! (August 28, 2006 - November 22, 2010)
The Wubbulous World of Dr. Seuss (August 25, 1997 - September 11, 2006)
Yo Gabba Gabba! (August 20, 2007 - August 17, 2015)
Nickelodeon television series