Video clips
Richard Hammond's Brain Reaction - Will a bike tyre or bottle explode first?
Thanyia Moore and Robin Morgan join team captains Johnny Vegas and Victoria Coren Mitchell as they demonstrate their pumping skills to find out which object can take the most pressure...
Richard Hammond's Brain Reaction - Lou Sanders almost breaks David Baddiel's heart
Bobby Mair and Lou Sanders employ some outrageous techniques in a bid to raise David Baddiel and Victoria Coren Mitchell's heart rate...
Richard Hammond's Brain Reaction - Can you really run faster than fire?
The guests place their predictions on whether petrol can outburn an athlete...
Richard Hammond's Brain Reaction - Johnny Vegas drives Kiri Pritchard-McLean crazy
Team captains Johnny Vegas and Victoria Coren Mitchell try to not hurt Kiri Prichard-McLean and Guz Khan's feelings...
Richard Hammond's Brain Reaction - Rugby player versus fireman's hose
The pressure is on as a rugby player battles a fireman's hose.
Richard Hammond's Brain Reaction - A smashing time
Diamonds are forever... or are they?