I would:
- Go to the Cavern

- Go the the 1st Ed Sullivan Show performance in 1964

- Go to The Beatles’ main gigs (like Washington, Shea, or San Francisco)

- Join them in India to see what happened there

- Watch the rooftop concert

- Be in the Apple Scruffs

- Convince John, George and Ringo NOT to work with Allen Klein

- Attend to the performance Elton John and John Lennon did together

- Attend to many Rockshow gigs

- Attend to Concert for Bangladesh

- Convince John and Paul to go on SNL

- Save John and George of course

- Convince The Beatles to play during Live Aid in 1985
