Basically Jamie Oliver is a complete star: he’s continued his cooking shows through the pandemic. He’s fully-isolated. No studio, no staff, just him, his wife and all the kids helping out. He tries to encourage the art of swapping in ingredients based on what may -or may not -be left in your fridge and store-cupboards.
Obviously there’s a bit of editing by some remote staff to clean it up, but he does a fantastic job of presenting his ideas/hacks to the TV/Internet viewers.
Link to the series: https://www.channel4.com/programmes/jamie-keep-cooking-and-carry-on