On Sat, 05 Sep 2015 15:52:39 -0400, Nil wrote:

It doesn't. The TV network connection is via the common wireless or
ethernet cable.

So, help me here.

Let's say the DirectTV dish is on the roof, and it has a coax cable that
goes down the side of the house, through a wall, to a wall plate.

From that wall plate, how does "it" (i.e., the tv signal) get on my
"network"?

You said the tv signal gets into the network via either the wireless
connection or through the wired ethernet (cat5) cable.

But, how does that coax cable tv signal get to either one of those (i.e.,
how does the coax connect to the wifi or the ethernet cable)?