Tomorrow evening, the dating website Catholic Match will be conducting the semi-annual National Catholic Singles Conference, with the East coast edition in Pittsburgh this weekend. Other than the costs, there is no reason for a single Catholic to attend.
While the schedule advertises a Byzantine Divine Liturgy on Saturday morning (not Sunday), the event is hosting dances that have nothing to do with Catholicism, plus the other speakers are Theology of the Body experts. This alone should deter any single Catholic who is serious about finding a spouse and planning on living according to the real Magisterium of the Church.
The advertised Closing Mass I would presume is the Novus Ordo, since many pictures of previous NCSCs show Novus Ordo Masses. Not worth the money spent. If the Byzantine Mass were moved to Sunday morning it would fulfill the obligation and there is no question of validity of the Eucharist.
Since the Pittsburgh Diocese is an official sponsor, this is the reason why there's not even an option to attend a TLM for this conference on Sunday.