I'm Watching a now TV live sport stream through the app on my LG smart TV. Initial viewing is fine but after 5-10 minutes the picture freezes, then the audio and picture go out of sink and the stream becomes 'jumpy' . I've ran a Speed test and I regularly get 45mb/s. when watching nowtv on other devices in the house the service is fine so it's not a speed or bandwidth problem. There are no updates needed on the TV. The problem only occurs when watching live sport, the movie and entertainment packages work fine.