Just purchase LG 55" Google TV and been trying to play movies from my computer. Purchase Plex and installed Plex media server, but every time I play video, I get sound but no video, no matter what I play. The TV feature says the TV supports DNLA, but not sure how to view video from my PC without 3rd party app. Can someone guide me how to setup my TV so I can stream videos from my PC? Thanks!