Guy Martin, the infamous Isle of Man TT racer, TV personality, lorry mechanic, tea junkie and extreme dare devil will try and set a new world record and ride his motorbike across Lake Bala in North Wales on your TV on Sunday 5th January at 8:00pm (CH4). Guy Martin and the production company North One Television have created a four part TV series called “Speed”. The series has a scientific slant but is clearly an excuse to push even more adrenaline through Guy’s veins.