On Thu, 16 Oct 2008 12:11:58 -0700 (PDT), Mike
wrote:

My wife has given me a project - move the TV in our upstairs bedroom
from one side of the room to the other. Right now, the coax outlet is
on an interior wall, it was installed by a contractor of the cable
company. The new location of the TV is going to be another interior
wall. I got up in the attic while home for lunch to see if I could
look down between the wall of the bedroom and the wall of the
adjoining bathroom, but there seems to be plywood laying over top the
opening (but not on top of the joists). Using our home security
wiring as a point of reference (the security control box is on the
same wall that I need to put the new coax outlet on), the installers
for that had drilled holes in the plywood to run their wires. There
is an unused phone jack on the same wall, I'm considering removing
that and running the coax through that box (it's not even really a
phone jack, just a small glut of wire stuffed into a little box in the
wall, hidden by bedroom furniture), but I am not sure if the wires
come through the attic, or come up from the bottom. If those wires
come through the attic, I'll try dropping the coax down the same hole
and hope for the best.

If you can come from underneath, coax does not have to be installed
inside the wall.

If you have to come from above, it will look much nicer in the wall,
but if you can come from underneath, it is hardly noticeable just
coming thru a hole in the floor.

If you do come from the top you can use one if these to make a neat
job.

http://www.centronics.com/products/Low-Voltage-Brackets

SC100RR - 1 Gang Old Work Bracket or LVMP-1


And then use one of these
http://www.parts-express.com/pe/show...number=150-023

Coax and phone are both low voltage and don't need a box, but the
bracket is there to screw the cover to.