On September 08 1964, The Beatles performed twice on the same day at the Montreal Forum in Montreal, Quebec, Canada. The set list is the same as the other shows and this was supposedly the show where a death threat was put out for Ringo and he was escorted by a policeman crouching down beside him as he played! (As Ringo relates the story on the "Anthology" DVD).
I've included a "youtube" video of the press conference between the afternoon show and the evening as well as footage of the arrival by the group at Dorval airport. There seems to be a circulation of the show although it's incomplete - I haven't heard the tape but it seems to not be the best quality; the track listing is as follows: "Twist and Shout/ You Can't Do That/ All My Loving/ She Loves You/ Things We Said Today/ Roll Over Beethoven/ Can't Buy Me Love/ If I Fell/ Boys/ A Hard Day's Night". Missing from the tape are the performances for "Long Tall Sally" and "I Want To Hold Your Hand".