I didn't see the show (it's not offered here), but they may have been using cloth-backed carpet tape. It holds much better than the cheaper vinyl-backed stuff. I purchased a couple rolls from a carpet and flooring business.
Don't leave the items stuck together over a long period of time; you will have a bear of a time getting them apart. I know that for a fact!
Don't leave the items stuck together over a long period of time; you will have a bear of a time getting them apart. I know that for a fact!