OP, it would really help if you would give a better description of what you are wanting to do.
Is this a new run from the cable main line?
You adding an outlet to a room?
How many TVs do you have in your home right now?
Lets say you have 4 TVs in your house right now. You add 200 feet of cable to another outlet, chances are your upper channels are going to look terrible.
By the time you go from the main line, 100 feet to your house, through a ground block, 50 feet into the attic, through a 4 way, 200 feet of cable you are asking about, you are looking at maybe 30 db of signal lose on the upper channels.
The signal probably leaves the main line at 15 - 20 db. If you want to put a digital box at the end of the 200 foot run, there is no way its going to work with a -10, -15 signal strength.