Supermarkets Unwrapped: The Vegan Aisle (Season 1 Episode 2 of 4): The team head for the Vegan Aisle for all the news on animal-free food. Supermarkets Unwrapped: The Vegan Aisle airs on Channel 4 +1 at 6:45 AM, Tuesday 13 February. The team head for the Vegan Aisle for all the news on animal-free food