Hi, I have a Tivo Premier with an external card from comcast (I do not have a cable box from comcast). I want to access my recordings on the road via 3G on an iphone. I've heard Slingbox will do the job but I have not been able to find a definitive answer on how to do it. In other words, if I buy an Slingbox HD-Pro, and using the Slingbox app on the iphone, when I am the road only with 3G could I select any of the recording on the Tivo box and stream it to the iphone? Any help very much appreciated!