My Old Lady - S1-E4
Revealing mistake: When the old lady patient is seen "escaping" she lifts the walking frame up out of the hole and it catches the set and lifts it into shot.
My Old Lady - S1-E4
Revealing mistake: Just before all the bricks fall on JD and it's a surprise, you can see him flinch before they hit him.
Answer: No, it was a fake, they used a stamp.
It is real.