hi, i intend to fresh apply astrol pvr and notice it need 2 coaxial cables, but my new house already has 1 coaxial cable concealed in the wall.
i dont want to hack again my wall for put another cable.

after google it, there have one solution which install stacker-destacker

i want to know
- cost if it?
- is it buy from the astro technician installer?
- picture quality and features are all unchanges compare to 2 cables?