It's on EWTN. They made a request for no use of flash photography "so as not to disturb the liturgical proceedings," because the whole place is dark (and that's a particularly important element of the Vigil Mass!) except for the light of the Paschal Candle (and the Pope's candle). Not everyone seems to be adhering to this policy, but it's not too terrible.
As the flame from the Paschal Candle is shared with the candles of all the other candles in the church, the sign of the Light of Christ being shared with all men becomes clear.