If the ambition is to provide two hours of instantly forgettable, popcorn-munching escapism, it succeeds.

How wonderful it is to see this fine actress carry a film and carry it so beautifully.

The joyful confection is coated in a sparkly gloss, bright enough to gleam from the darkest, most cynical corners.

Watching it is like watching the spectacle of a class clown at their best: you laugh at their jokes, instigate their defiance, and "ooooh" when they get in trouble.

I love this show. These people in the call centre are angels and the paramedics are amazing. I especially love the twins in series 2. I also have an ulterior motive as my son works for the London Ambulance Service and is one of these beautiful caring people. It gives me a chance to see what his day to day work life is like from the other side of the world.