British shoppers are the kings and queens of online, buying more on the internet than anywhere else in the developed world. And it has completely changed the way we shop. In this special programme, Supershoppers Andi Osho and Anna Richardson take to their own delivery van behind the scenes of the internet retail revolution. Why do most of us shop at midnight? How do shopping websites tempt us to buy more? How much does online delivery really cost? And who is really paying for your online takeaway? From Amazon to Asda and John Lewis to Just Eat, the Supershoppers investigate, with surprising results. And through a series of shopping diaries, internet addicts across the country reveal their insights and tips into this brave new world of online shopping.

A bumper-sized episode looks at the bizarre world of portion sizes, plus a look at what really goes into dog food.

Andi and Anna reveal what the difference is between big-brand designer sunglasses and normal ones from the supermarket. Plus a look at craft ciders that aren't actually ciders at all.

Andi and Anna assess the quality of Thomas Pink shirts. They also compare bars of soap to liquid soap.

A £70 polo shirt from Ralph Lauren is tested against Asda's version of the shirt which retails at £6. Plus a look at how an online retailer can get away with charging two different prices for the same dress.

In this episode, how you can pay less for a holiday then your best friend. A £20 Aldi jacket is tested against a £155 North Face one.