Enter Tell Me When Brain Teaser
Every week on the show, we give you an event that happened "On this Day" and you just have to say which year from a choice of 3. An HRB mug is the prize for the winner.
From this weekend, you are able to enter online using the form below.
The competition opens at 1.45pm and closes at 2.15pm.
Only those who are patients in the hospital or staff in the hospital at the time of the competition are eligible to enter.
HRB's usual competition guidelines apply.
Good luck!