it is completely staged, not just "a little bit" I wouldn't be surprised if they had a script to be honest. i saw it the other day, and in 1 episode i saw 3 examples of staging. In one, she was waiting just out of sight odf the camera, but you could just see a it of her, waiting to come in on cue, and in another "acorn antiques" esque moment she was standing completely still, realised the camera was rolling, startd to move as if she'd just come down the stairs to go and have a row with him, she was clearly waiting for somone to say "action"