These games can't be live because the Sporting game is scheduled to start at noon while the Benfica game is scheduled for 4 eastern time!
On www.rtp.pt, they changed the sporting game time from 17:30 local time (12:30pm EST) to 16:55 local time (11:55am EST), so maybe that game will give live. They are announcing the Benfica game live at 21:30 local time (4:30pm EST) but the game is scheduled for 20:00 local time (3:00pm EST). I would check RTP around all these times, one of them must be right.
They just said that RTP will be showing the Benfica game live at 3:00 EST. I'm not sure if that applies to RTPi. It's possible that they may have to show it on a delay because Setanta has the rights to show it live in the US. I'm just speculating though.