National anthem video: The return of the SS Canberra from the Falklands on 11 July 1982. One of the rare anthem vids that doesn't show the Queen. Probably from ITN B-reel.
0:32 Now, uh, I'm not British or anything, but I am fairly certain that 8 PM comes AFTER 7:30, and that "then" in the context used here means that the 7:30 show would follow the 8 PM show.