Yes, I love that programme.
The engineer bloke I'm working with will give you chapter and verse on all the classic albums, he seems to know what each musician did and when on every song since the sixties.
The Beatles first recorded on two track tape machines (in other words, two Beatles to each microphone, so to speak), and the resulting recordings are testimony to their talent, musicianship and hundreds of hours rehearsal. Then there are the newly released acapella tapes of Marvin Gaye and his flawless singing.
Those guys came up the hard way, and just as I can admire Ed Sheeran, the recording industry isn't replete with towering natural talent unaided by Autotune and echo chamber.