I meant it's a great *question*. :-)

Michael, provided you had gone to Mass on Friday, I think that you would have to go again on Sunday (precisely because it is a Sunday) and (for this one I am less sure) because the holy day of obligation in the U.S. is the day of Epiphany *according to the ordinary form*. (The day was set at a time when attending the extraordinary form of the Mass was not foreseen as a (frequent)possibility).

Micheal, it's a great answer. Just go down this page http://www.jimmyakin.org/sunday_obligation/ to get Jimmy's answer. Actually, there are 2 blog entries that deal with the matter. I hope this helps.

sorry to hear that, but praying our dear Lord for her and everyone involved.