Nope... "I have a coax wired connection... "
But it does give you HD rather than just sending the low quality RF2 output from the Sky box around the house (as mentioned by tinx).
I have a coax wired connection... and use an HDMI splitter, and a whizzy box to translate that into a Freeview HD channel which is broadcast down the coax cable (it actually goes out to all of the other TVs in the house via a coax amplifier). Gives me HD Sky in all rooms (obviously only showing...