It's not going to happen I imagine, their best bet is to try a bar that has sky from a uk receiver (most english/irish/aussie) bars in italy do this, then if they want to offer to pay the fee to subscribe to setanta for the game - it's still unlikely as many people will be in the bars to watch both the premiership or serie A has just kicked off again.
If they are really desperate they could call two pubs in Milan that used to show gaa, but I don't know if they still do - milan is approx 3 hrs from venice by train. The pubs in question are:
Kirribilli, Via Castel Morrone 027012015
Murphy's Law, Via Savona 028372385