How very odd. Zooming in (as much as I can on a smart phone) it looks as though they are Screens with a black Perspex panel in front.
Is this a temporary measure before larger screens will used in portrait mode (Ala daybreak v2 & GMB), or did somebody think that it would look right like that?
Tuned in manually on Sky and I see nothing wrong with it, with the majority of shots being close ups, it just looks like some sort of barrier as it is so out of focus.