Most people will be after watching The Restaurant (8.00pm, BBC2; they're tackling roadside cafe's tonight with all the imagination of a gnat), so here's another chance to see William Crawley embark on a compelling personal challenge as he looks at our relationship with alcohol. While attempting to abstain from drink for a month, William sets out to discover the extent to which alcohol affects all our lives, whether we use it as a social lubricant or as an emotional crutch. After learning some deeply personal lessons about his own relationship with alcohol, will William ever drink again?