Running since the dawn of time, Last of the Summer Wine is one of the mot reliable elements of the BBC's output. Featuring wonderful actors in unique roles, it's ideal viewing for sitting down with the Sunday tea. It's warm, sentimental and old-fashioned. That every episode seems to end with a couple of OAPs rolling down a hillside in a tin bath on wheels is neither here nor there: it's charming and friendly. Spiky edges are provided by Dame Thora Hird, the wondrous Kathy Staff, and Jane Freeman, and the series is not challenging viewing. Harmless. The kind of telly you could watch with your granny. That most of the cast are your granny's age is another joy. Hardly cutting edge, and guaranteed to run until the end of the world, Last of the Summer Wine is truly immortal.