Description
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a preschool block that aired on TLC from December 28, 1992 to September 26, 2008, and Discovery Kids from 1998 to October 8, 2010.The block was initially hosted by children's entertainer Rory Zuckerman, who was billed as simply "Rory". In 1996, Discovery Kids began to air its shows in its schedule upon its launch as one of the first digital cable networks.

On February 24, 2003, Ready Set Learn introduced Paz the Penguin, who was seen in the block's official logo. The block aired for the last time on TLC on September 26, 2008, and it was replaced with repeats of regular TLC programming three days later.

On October 10, 2010, Discovery Kids was re-launched as The Hub (currently Discovery Family) as a joint venture with Hasbro, and the RSL block was re-launched with new shows as HubBub the following day; it lasted until 2013.Programming
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Program Premiere date Finale date
Animal Jam February 24, 2003 November 24, 2006
Balamory September 23, 2005 December 23, 2007
The Berenstain Bears September 28, 1998 November 13, 1998
The Big Garage September 29, 1997 July 17, 2001
Bigfoot Presents: Meteor and the Mighty Monster Trucks September 25, 2006 October 8, 2010
Bingo and Molly September 29, 1997 June 28, 2002
Bookmice December 28, 1992 June 27, 1997
Brum February 24, 2003 December 23, 2006
Caillou September 1, 1998 August 31, 1999
Chicken Minute September 25, 1995 September 29, 1997
Hi-5 February 24, 2003 October 8, 2010
Hip Hop Harry September 26, 2006 October 8, 2010
The Huggabug Club June 1, 1998 February 23, 2003
Jay Jay the Jet Plane November 2, 1998 June 1, 2001
Join In! December 28, 1992 June 24, 1995
Kitty Cats December 28, 1992 May 29, 1998
Little Star September 25, 1995 September 26, 1997
Madison's Adventures Growing Up Wild 1997
The Magic Box December 28, 1992 May 27, 1996
The Magic School Bus February 24, 2003 2009
Nini's Treehouse September 25, 2000 February 23, 2003
Pappyland September 30, 1996 February 23