I watch BT TV on my TV using the app on my apple TV (plugged directly into my TV with HDMI) not casting from my phone/other device. That works fine apart from with Catch Up. When I watch series catch up of shows (for example 'Object of Murder') after about 15mins the show pauses on a frame for a minute or so and then re-starts but it has skipped to within a few minutes of the end of the show. Weirdly the progress bar at the bottom of the screen still only shows the actual time elapsed since I hit play. Any ideas?