Lucy Punch confirms her position as one of the great sitcom grotesques. Plus: an undercover investigation into high street crime. Here’s what to watch this evening
9pm, BBC One
It’s prom night for Georgie. Clearly, this event is right in Amanda’s wheelhouse, but her determination to muscle in on her daughter’s world is foiled by a kid with richer, more ostentatious parents. Still, at least Amanda can host the pre-party, even if her appalling mother, Felicity (Joanna Lumley), is stinking up the place. As this series ends, Amanda (brilliantly brought to life by Lucy Punch) has sealed her position as one of the great grotesque sitcom characters. Phil Harrison