MTV Networks revs up gay-themed Outlet NEW YORK (Variety) --- MTV Networks, buoyed by positive talks with top cable operators, has begun stepping up the planning for Outlet, a 24-hour network aimed at gays and lesbians. In development for more than two years, Outlet failed to launch in 2002 because MTV had brought in sister network Showtime to market it as a pay channel. When that strategy didn't pass muster with cable operators, Showtime bowed out of the picture and MTV repositioned Outlet as an ad-supported, digital, basic cable network. But with that repositioning, MTV has had to change its...