Time Warner Inc. ( ), formerly three separate companies as Warner Communications, Inc. and Time Inc. before the Time-Warner merger in 1990 and America Online, Inc. before its purchase of Time Warner in 2001 is the world's second largest media and entertainment conglomerate, right behind News Corporation, headquartered in New York City, with major operations in film, television, publishing, Internet service and telecommunications. Among its subsidiaries are AOL, New Line Cinema, Time Inc., Time Warner Cable, HBO, Turner Broadcasting System, The CW Television Network, Warner Bros. Entertainment, Cartoon Network, CNN, and DC Comics.