 Upon Bridges's departure, Richardson took over as host, a role he left after series 4 in 2012.Since January 2012, he has also been a regular on Channel 4's "8 Out of 10 Cats Does Countdown".Richardson presented a 2012 documentary entitled "A Little Bit OCD", in which he studied the lives of people diagnosed with OCD and worried that he might have the same condition; he was indeed revealed to exhibit symptoms of OCD, but did not show signs of the accompanying dysfunction.