When the Shaw tech comes to set up the gateway & portals, can he/she set up a portal in advance of connecting it to a TV? Specifically, I will have 4 portals, but only 3 TVs. The 4th TV to come later. Can he/she set up the portal now so that I can plug it in to the 4th TV later? Also, if he/she sets it up in the bedroom, can I move the TV and portal to another room that is wired for cable at a later date or does he/she have to come back out?