Viacom (short for Video & Audio Communications) was an American entertainment company. It started in 1970 as Viacom International, the syndication division of CBS TV (which they once owned). In 2005, Viacom split into two companies: the original company was renamed CBS Corporation, and a new company keeping the Viacom name was created. They own Paramount Pictures, MTV, Nickelodeon, Nick Jr., and others. They formerly owned the movie rental giant Blockbuster Entertainment.