Nick Jr. (Noobian Union)

Nick Jr. Noobian Union  is a network made by Viacom Noobville.

It first launched in 1992 as the Nick Learning Channel, but it launched as a block in 1996 along with the channel in 1997.

Nick Learning Channel (1992-1997)
In 1992, when Nickelodeon (Noobian Union and Noobloxia) had launched, it included another channel: It was called the Nick Learning Channel. Nick Learning Channel was an E/I commercial free channel. It was the free-to-air version of Nickelodeon. In 1995, when the Nickelodeon channel shuts down for a short time, Nick Learning Channel for the first time included Nick Jr. . In 1996, Nickelodeon started airing Nick Jr. In 1997, Nick Learning Channel ceased programming, leaving room for Nick Jr. to get a channel.

Nick Jr. before being 24 hours (1997-2009)
When the Nick Jr. channel launched, it aired from 6.00 ENST-19.45 ENST, when it signs off, Nick Plus airs, but Nick Plus got it's own channel in 1999. From 1999-2005, TEENick Noobian Union was the nighttime block, and it expanded it's time from 6.00 ENST- 20.50 ENST. When TEENick got it's own channel, replacing Nick Plus, Nick Jr. Classics (formally Noggin Noobian Union) aired during the nighttime.

Nick Jr.'s 24 hour channel (2009-present)
After Nick Jr. Classics went defunct, Nick Jr. began as a 24 hour channel. In replacement of Nick Jr. Classics, Nick Jr. introduced the Nick Jr. Nighttime hour. The Nick Jr. Nighttime Hour puts stuff related to nighttime or older shows. It airs from 20.00 ENST- 6.00 ENST. During the Nick Jr. Nightime Hour, commercials air outside of the network while the rest of the time, they would only show Nick Jr., Nickelodeon, and Nicktoons promos.