Nickelodeon (often shortened to Nick, and originally called Pinwheel) is an american basic cable and satellite television network that is owned by the Viacom Media Networks division of Viacom.
The channel's programming consists of original first-run television series, along with occasional broadcasts of theatrically-released and original made-for-cable movies and select other third-party programming. Its programming runs from Sunday through Wednesdays, and Fridays from 7:00 a.m. to 9:00 p.m., Thursdays from 7:00 a.m. to 8:00 p.m., and Saturdays from 7:00 a.m. to 10:00 p.m. (Eastern and Pacific Time).
Since July 1985, it has shared its channel space with Nick at Nite, a nighttime service that airs during the interim hours, and is treated as a separate channel from Nickelodeon by Nielsen for ratings purposes, it features reruns of older primetime sitcoms, along with some original series and feature films. Both services are sometimes collectively referred to as "Nickelodeon/Nick at Nite", due to their common association as two individual channels sharing a single channel space.
As of February 2015, Nickelodeon/Nick at Nite is available to approximately 94.7 million pay television households (81.4% of households with at least one television set) in the United States.
(Source: Wikipedia)