sentences:  Nick Jr. is a pre-schoolers children's channel and is part of the Dutch Nickelodeon network.After the transition of Kindernet to Nickelodeon in 2003 Nick Jr. became a program block on Nickelodeon in the morning.Nick Jr. would launch as a separate 24-hour channel on 1 January 2005 but due to some capacity problems it eventually launched a few months later on 1 May.