Ready Set Learn! is a defunct American television block that aired from late 1992 until 2010 across the Discovery Communications-owned TLC and Discovery Kids networks. A cable competitor to PBS's children's offerings, it broadcast twice on weekday mornings and comprised three hours of original, imported, and rerun programming plus music videos geared towards preschoolers. In its early years, it was hosted by children's entertainer Rory Zuckerman, who was billed mononymously; an early 2003 relaunch replaced her with Paz, a penguin who was represented in animated and puppet form.