I just watched the above with des o'connor and his wife and I knew the way the mrs was holding the headphones - she was listening in. I study body language. I instinctively knew she would get the questions all correct which she did.
We have just watched this programme from last night. I never mentioned your comment to the other half but my the second question to Des he said - she isnt listening to the music, she is listening to the answers...this is from someone who usually cant be bothered with the programme and usually falls asleep.....
I just watched it on itvplayer and agree. She was even smiling and smirking along with some of the jokes and looked a bit worried when they were discussing her damaging Des's car.