The Beatles stopped touring midway through their tenure, despite their success. Or maybe because of it. In 1966, weary from obsessed fans and all the danger and attention it brought, the Beatles retired from the road and focused its remaining five years in the studio. Curiously, of all their live performances, only three were professionally recorded, all at the Hollywood Bowl. Those recordings have now been remastered — no small feat, considering the archaic recording and sound equipment, and the manic screaming from the audience. It’s being released in conjunction with Ron Howard’s new documentary on the Beatles’ touring years. All these years later, the enormity of Beatlemania is still hard to comprehend.