Screw Channel 4, 9pm

Nina Sosanya (below) stars in this new darkly funny drama following life in a tough men’s jail through the eyes of its staff. She plays prison officer Leigh Henry, who loves the job and is willing to bend the rules to help the inmates. That’s not the only thing that makes her a maverick – she also appears to be secretly living on the wing, which could be a problem when her position is threatened.