You could run the cord from point a to point b and cover the new room bisecting wire with a floor rug or lay out your furniture on top of it but you re not likely to completely hide the eyesore. 1 decade ago magic is the only way if you don t want to run a coax cable and put in a cable jack.
Setup is even easier than powerline just screw in the coax cable plug in ethernet and power on.
How to get cable in a room without jack. If you don t have a cable box skip to section 2 there should be at least two of them. And the same speed in every room even with over 150 meter coax runs. In the basement you would put the hdmi output of cablebox to the input on the wallplate and place the ir repeater over the ir sensor of the cable box and plug the other end into wallplate.
In the room where tv will be you connect tv via hdmi to wallplate and again take the ir repeater and place it where there is line of sight to remote. The person that comcast sends out should be able to tell you how many splits you can get without lowering your picture quality. With moca i not only get full gigabit internet speeds i get almost 2 5 gigabit file transfer speed over network.
If you have an area in your home with poor wifi signal or need a hardwire connection but don t have an ethernet jack in the room this is what i did interne. If you are concerned about the expense of all that cable you could get a roll of wire and create your own custom lengths off of that someplace like radio shack should be able to sell you the necessary tools. No issues with interference etc.
One goes to your tv and the other goes the back of the cable modem. You could always run a cable under the rug near the base board if you have a cable near by. Or like me you could just give in buy a new tv stand that fits the space and put the tv where the cable connection is.
Locate the coaxial outport on the back of your cable box. Easily stream your satellite cable dvds gaming console and more to any tv wirelessly transmit audio and video seamlessly from one room to another without the hassle of installing messy cables.