Reletive values: Ronnie Corbett and his daughter Sophie

The comedian and actor, 79, and his daughter, 42, a voiceover artist, on loving showbiz, mega-success and why he will always be the family's Peter Pan.

Ronnie Corbett plays Sandy Hopper in this new comedy by Ian Davidson and Peter Vincent. He's 65, a widower, living on in the old family home with his ancient dog Henry. His son and daughter (both married disastrously, according to Sandy) can't wait for him to move so that they can sell the house and divide the spoils. He won't, though. Not until the dog dies, he says. Sally Grace plays (charmingly) his nosy but nice neighbour. Liza Tarbuck (wittily) plays Dolores, his sexy but practical lodger. Jonathan Aris does an impressively monstrous son-in-law.

A gentle mid-morning chuckle - not a guffaw or a belly-laugh but a slight lift of the corners of the mouth and a nice warm glow in the stomach. This is the feeling you get when supreme masters of their art get to strut their stuff: Ronnie Corbett is note-perfect in this comedy from the same writers who produced Corbett's 80s sitcom Sorry! Sandy Hopper is 65, forever correcting other people's grammar, always at odds with the lodger, afflicted with ungrateful children who can't wait to inherit but, like his devoted old hound, Sandy has plenty of wag left in him. There's a good reason why Corbett is a national treasure: he can wrap such tenuous, grandad-friendly material around a rod of comic steel and make it zing.