I've been binge watching greys anatomy (again!!) and I'm on season 3, when I click to watch the next episode, I can hear the show but my screen is black, I've tried several episodes so I know it's not just episode 3 that's bugging. I've tried other recorded/bookmarked shows and they all play fine. What's going on?!
It could be that the show in question is faulty on the on demand servers.
It is a good idea to check that there is no known issue in your area by using the Check service status and entering your postcode.
As the sound plays, but not the video, then resetting your V6 box may resolve the issue, failing that it may be an idea to phone and report the issue as it can take up to two weeks before a moderator may see and respond to your issue.
You can't learn anything from a mistake until you admit that you've made it.