John Lennon is wearing his famous round Windsor brand glasses which he began wearing 1966, three years after this episode is set. In 1963, Lennon wore "Buddy Holly" style glasses which were wide black-rimmed glasses.
However, the episode is set in an alternate timeline where reality has been altered and music has all but disappeared since the 1930s. So the reality of The Beatles would be different, and Buddy Holly would likely never have existed as a musician to inspire John in the alternate reality.
However, the episode is set in an alternate timeline where reality has been altered and music has all but disappeared since the 1930s. So the reality of The Beatles would be different, and Buddy Holly would likely never have existed as a musician to inspire John in the alternate reality.
The number plate of the Volkswagen Beetle parked on Abbey Road is LMW 281F (same as the Beatles album cover) but this type of registration came out in August 1967, four years after this story was set.