On the 25thJune 1967, Intelsat satellites carried the first-ever live international broadcast, the TV special “Our World.” The two-and-a-half-hour program, was coordinated out of the BBC control room in London and featured live feeds from 14 different countries in succession moving west around the globe[1].
At 10.11pm, the program reached Italy and the tiny church of S. Pietro in Tuscania. It showed live to millions of people the rehearsal of the wedding scene of Romeo and Juliet, with Zeffirelli giving directions to Milo O’Shea, Leonard Whiting and Olivia Hussey, as well as to the film camera crew.
Zeffirelli tells the cast that the scene (Scene 28, page 104 of the script) will be filmed straight through first for continuity and then shot again in segments as cuts for camera angles.
[1]http://www.intelsat.com/news/blog/beatles-said-its-easy-but-50th-anniversary-of-our-world-broadcast-wasnt/