 This had the adverse effect of making UPN one of the few networks not to have owned-and-operated stations in New York City and Los Angeles (additionally, UPN never had an O&O in the Chicago market throughout its existence).Similarly, The WB had the distinction of being the only American broadcast network never to have had an O&O, as although minority owner Tribune operated its core charter stations, Time Warner held majority ownership in the network (with a maximum interest of 77.5%, during the final years of The WB's existence).Time Warner did acquire Atlanta independent station WTBS (which served as the originating feed of then-superstation TBS) through its 1996 merger with the Turner Broadcasting System, however WATL (which Tribune would acquire in 1999) served as the WB affiliate for that market throughout the network's run.