Knebworth 1980 is the last time all six Beach Boys appeared together in the UK. Brian is now a zombie, and Dennis is a mess. Nice harmonies, though, and the songs aren’t bad, either. On Tour is riveting. Cameras track a content 21st-century Wilson on stage and off. Carol Kaye, Pet Sounds bassist, insists he “still has the power to do something mind-blowing” before he performs a new song that is, indeed, mind-blowing.