Once in a while, there comes along a show so well-written and performed, so funny, and so outstanding, that it’s hard to agree on its best episodes. So we gave up and asked someone else to do it. And who better than the show’s creators and executive producers? You’ll find everything from Sheldon’s “Friendship Algorithm” to Penny’s gift of the “Nimoy Napkin” in this curated digital collection of ten unforgettable episodes.