"As you can see behind me..." This has got to be one of the most annoying statement by TV news reporters. And it's made worse, when the reporter physically turns to face what it is, he or she wants us to focus on. News Flash: The viewer is likely to have seen what is behind you, the moment you popped up on the screen.
It does add value if the reporter provides information to help the viewer understand what is happening in the background.
It is useful indeed, to try and explain, even by turning to look behind, if what is in the viewer's line of sight, is significant and enhances the comprehension of a news story.
But. A mere allusion to the fact that there is something happening behind the reporter, is redundant if not useless entirely, save for the aforementioned annoyance.
Television is obviously a visual medium. And it's perhaps foolhardy to try and direct or dictate to the viewer what to see across their TV screen, at any one particular moment.
"As you can see behind me..." No. No. No!
"What you see behind me is..." Yes. Correct. Approved!