Watched BT Sport last night (16th Feb), tonight it provides the channel information at the bottom of the screen when I press enter, but the screen remains blank. Same on all the BT Sports channels. I have rebooted, reset and all the other standard moves.
Thanks for your post and welcome back!
Just popping along to let you know that I have moved your post to start your own thread as that's the best thing to do. Others will be along to offer advice shortly.