The Other One BBC1, 9.30pm

It’s lambing season in the lively sitcom, and Cathy can’t wait for Cat and Callum to experience it during a trip to Auntie Dawn’s (guest star Caroline Quentin, left) farm. But if the tension between the sisters and the crate of energy drinks that Cat brought along as a present (which Dawn is a little too keen on downing) don’t ruin the mini-break, perhaps the arrival of Cathy’s mother Tess and her unwelcome visitor will.