"Sociologist Jean Claude Kaufmann says the French version combines Milgram's use of authority with the power of live television."
The article clearly demonstrates the amplification of the pressure and stress because of television environment.
In this experiment, 80% of the participants kept on buzzing. In Milgram's experiment, 65% of the participants kept on buzzing.
A 15% jump, to me, would show that the variable of the "TV" played a part.