If you have forced air heat or central air conditioning, you probably have a reasonably direct route from your basement/attic to any given room. Just use plenum

If you have forced air heat or central air conditioning, you probably have a reasonably direct route from your basement/attic to any given room. Just use plenum rated cable, and it's generally pretty straightforward. Cutting in the box and making up either end of the cable generally takes longer than running the drop.