Sorry in advance if I am not explaining this well. Hopefully someone can help.

I have recently purchased directv. The condo I own was prewired for cable and has a box on the 4th floor from the street. The only place to put the dish was on the deck, on the 3rd floor. The installer wanted to run coax all the way down the stairs through the living room, through the dining room and out the back door. He then decided to run the coax into the living room, to an exsisting cable outlet and have that be the input to the house through a SWM in the main cable box upstairs. The problem with this is that the closest outlet was the one I was going to use for my main TV. So what he did was take the outlet from the den and run coax to the main tv. Is there anyway to split the line in before it goes upstairs, and before it goes to the swim and have it run directly to the main TV receiver?