I was a Chief Engineer of a TV Station years ago, and this could have been done very easily. When I first heard the CNN's explanation, I thought "Computer Glitch, my ass!"
Computer glitch, eh? I thought that explanation went out in the 80's as people became more computer-savvy and recognized that "computer glitch" was just code for "human error". It's really an indictment of CNN's audience if they can offer a lame excuse like that and their viewers will swallow it.
"Bruce! Stop that, you silly guy! Now we're going to have to come up with some excuse to blame the damn computers. Call in all the tech guys!"
It reminded me of Janet Jackson and her "wardrope malfunction" excuse. They can amaze us with special effects, weather forcasters can walk in the clouds when giving the weather, but cnn claims the cant put an X on the screen on purpose. cnn are liars all day and all night.