More, this from the
USCCB:
*The Secretariat for the Liturgy has received several inquiries concerning the celebration of the sacraments via various types of electronic communication. The celebration of the Sacrament of Penance via telephone, participation in Mass via television or the celebration of the Sacrament of Confirmation via video conference have on occasion been proposed. However, electronic communication via telephone, television, video conference or internet is not sufficient for the celebration of the sacraments. The celebration of the sacraments requires the physical and geographic presence of both the gathered faithful and the bishop, priest, deacon or other presiding minister. *
Liturgical celebrations depend upon the physical presence of the gathered faithful. While the Ceremonial of Bishops enthusiastically recommends large diocesan liturgical celebrations the emphasis is always placed on the invitation to the faithful to gather. Indeed, the idea of gathering of the members of Christ’s faithful in one place is fundamental to the celebration of the Liturgy.
The faithful from different areas of the dioceses should be invited to gather and, as far as possible, the priests should join them. To encourage and make more convenient gatherings of the faithful and the priests, arrangement should be made for gatherings of this kind at different times in the various parts of the diocese." (Ceremonial of Bishops 13)
Thus the ritual for the Sacrament of Confirmation calls for the entrance song to take place “after the people have assembled.” The clear presumption is that the people are physically present and in the gathering are enabled to enter into a relationship with each other and the priest in the sacramental action.
Liturgical celebrations require the physical presence of the bishop, priest, deacon or the approved presiding minister. The multiple dialogues between priest and people which are at the heart of all Christian liturgy require the physical presence of “the bishop, either in person or through the priests who are his helpers.” ("episcopo sive per seipsum, sive per presbyteros adiutores ipsius."General Instruction of the Roman Missal 59)
The General Instruction of the Roman Missal, number 5, states that “It is of the greatest importance that the celebration of the Mass, the Lord’s Supper, be so arranged that the ministers and the faithful may take their own proper part in it and thus gain its fruits more fully.” The part of the priest celebrant would seem to be characterized first by his physical presence in order that he might enter into the necessary relationships with the gathered faithful and their God which form the basis of Christian worship. Electronic projections appear to lack a capacity for communication on the level of word, action and physical perception which are natural to those who are physically present.
Some might suggest that an electronic “presence,” especially when oral and visual communication is made possible through electronic means, is sufficient. While the use of media can lessen the impact or temper the limitations of distance and time, it also affects the way things are perceived. What people come to know and experience is not reality as such, but what they are shown. (cf. The Pontifical Council on Culture’s recent instruction Towards a Pastoral Approach to Culture, no. 9).
The liturgy, however, requires a full, conscious and active participation which demands the presence of the whole person in contact with the reality (not merely an image or concept) of the saving presence of Christ. A “live” telecast of an event allows a limited kind of “presence” for the viewer, but the viewer is very aware that he or she is not “really there” in the same manner as those physically present at the event. Effective participation and communication require that one be “present at” and “present to” the reality to be experienced.
As regular participants in video conferences report, electronic communication is incapable of transmitting the full range of human communication. As the ancient maxim ubi episcopus, ibi ecclesia implies, true “presence” is physical and geographical by definition.