AMC Networks
AMC Networks Inc. is an American entertainment company headquartered in 11 Penn Plaza, New York, that owns and operates the cable channels AMC (its eponymous brand), IFC, WE tv, BBC America (through a joint venture with BBC Studios), and SundanceTV; the art house movie theater IFC Center in New York City; the independent film company IFC Films; and premium streaming services Sundance Now and Shudder. In addition, the company operates AMC Networks International, its global division.
Showtime Networks
SNI, along with CBS, The CW Television Network (formerly UPN), Viacom Outdoor, Spelling Television, CBS Television Studios (formerly CBS Productions, Paramount Television and CBS Paramount Television), CBS Television Distribution (formerly Paramount Domestic Television, CBS Paramount Domestic Television and King World), CBS Studios International (formerly CBS Paramount International Television), Simon & Schuster and other entities became part of CBS Corporation when CBS officially split from Viacom in December 2005. SNI managed the CBS, Robert Redford and NBC Universal joint venture Sundance Channel until 2008, when it was sold to Rainbow Media (now AMC Networks).