There was an orbiting communications satellite by early 1964, but not in a "stationary" orbit.

As a result, only about 10-12 minutes of each day's ABC broadcast was sent via satellite.

However, most events of the 1964 Winter Olympics were held in the morning (local time in Innsbruck), which allowed tape to be shot, edited, and flown back to the U.S. in-time for a prime-time (Eastern time) broadcast.

Many of the prime-time telecasts were aired from 10 to 11 P.M. EST to insure that the day's major events could be shown that day in the 'States.