PICK OF THE DAY

MUM, 10PM, BBC2

TWO years and two series after Cathy (Lesley Manville, pictured right) lost her husband, the beautifully observed, Bafta-nominated sitcom moves to a new location, a posh country house (with pool) where unbearable show-off Pauline is in her element. The family — and Michael — have assembled to celebrate Derek’s birthday, and this final series (available in full on iPlayer) plays out over one week, rather than one year. With delightfully dappy couple Jason and Kelly doing a terrible job of keeping a secret and Derek planning a surprise, Cathy and Michael remain the only sane people in the vicinity.