Complex sentence: ABC Television Group announced the launch of Disney Jr., which would replace the Playhouse Disney morning block on sister network Disney Channel in February 2011, and extend to a standalone preschooler-oriented channel that would replace Soapnet in January 2012.
Split into simpler sentences: ABC Television Group announced the launch of Disney Junior, which would replace Playhouse Disney as its preschool-oriented television brand. Disney Junior would launch as a block on Disney Channel in February 2011, and was to launch a standalone channel to replace SoapNet in January 2012.