Doctor Who's Russell T Davies teases "great big battle" in Abbey Road Beatles episode
https://www.digitalspy.com/tv/a46179227/doctor-who-russell-t-davies-beatles-episode/
He shared some unfinished production art from the episode during his BBC documentary Imagine... Russell T Davies, revealing that The Doctor and Ruby Sunday will have an adventure with John, Paul, George and Ringo during a visit to their iconic recording studio Abbey Road in 1963.
[no photo of production art]