Is it possible? Could a company engineer a cable box to receive video over a box that has a cellular antenna w/ authorized access to the system via a SIM card. Similar to AT&T U-Verse only over 4G. Could the stream successfully run, over would buffering be an issue? Is there enough 4G Networks established in the United States to run video services over either type of 4G? Just an idea I had, thought I'd run it by you guys.