I've watched ACC before on Espn+. You have to have the correct TV provider (I have Hulu & the Diseny/ESPN package) or the magic PoEEta card, just be sure you haven't used up your 3 wishes.
Well ... you said you'd "get to the dual in a bit." Since you will be there in person it really won't matter but I'll be using my magic Poeeta card to watch on Espn+.