With DSL the same options/restrictions in regards to Sunrise products exist, as with Fiber.
I just don’t understand why you got the small square TV box. That one you should only get with a Fiber or DSL line. If you don’t have fiber, then you either have Coax (where you get a TV box that requires both, Coax and Internet), or you have DSL, where you get the Internet-Only small square box. Typically when moving from UPC to Sunrise, you never get the DSL option, as this is the worst of the three technologies.
If you still have a Connect Box (for Coax) for Internet, then you could put it in the middle of the two important rooms (PC and TV) and put in each of the other two one of the Connect Pods. That might provide a well enough signal for both.
Preferably you install a LAN cable, that’s always the best solution.
