Nick Jr. – a preschool-targeted digital cable and satellite network that originated as a program block on Nickelodeon from 1988 to 2009 Sprout – a digital cable and satellite network featuring preschool-oriented programs mainly sourced from the PBS library as well as original series Disney Junior – a channel that is based on Playhouse Disney and has been airing since 2011 as a television block on Disney Channel and a channel since 2012