I'm looking for a youtube video, which I think was a clip from a game show/comedy program type thing - possibly British or Australian. In it, people are trapped in a room with a bunch of random items, with a briefcase(?) full of money outside a locked clear door, and there is a timer counting down. Also I think there was a counter counting up. Their goal was to try increase the counter to a certain point, which will unlock the door and give them the money. So they start doing increasingly chaotic things as they believe certain random actions are associated with the counter going up or down (destroying items, saying certain words etc).

However, - this might be a spoiler?- what they don't know is that the counter up is controlled by a completely unrelated outside source (goldfish in a tank I think), not their actions in the room. Moreover, it wasn't tied to the door at all, as it was unlocked and they could have just walked over and grabbed the money at any time if they hadn't been so focused on doing the actions in the room.

I want to say a late 2000s, early 2010s show - so the clip might have been taken off of youtube sometime since then, but I'd love to know the name of the program. Very Taskmaster feeling, though I don't think its that, as I remember they touched on the science behind it, with things like the skinner box experiment etc.

Thanks for your help!