Shortening/Shorter cables?

[shihtzu2002]

I'm hoping somebody can help me out, I'm not a tech pro, so I don't know all the correct terms.

Basically I'm trying to find out if there is a way to shorten (or buy a shorter one) the cable that runs from the cable hookup (on the wall) to the television.

When the cable was installed the guy said that it had to run through these splitters, so that it wouldn't effect the quality of the signal in the rest of the house/or something about boosting it. I can't quite remember. Anyways, the point is that the cable that comes from the wall is very short, it then connects to a splitter (looks like a T) where it is split into 2, 1 goes to a little black box that is plugged into the power strip, the other goes on a couple feet then it hits another splitter that splits into 3 and there is only 1 cord that comes out of that and thats the one that connects to the TiVo box.

Basically I'm stuck with a lot of white wire that isn't easily hidden, and the cord seems to be longer then it needs to be. So much so that it loops several times. So here is the question, is there a reason the cable is so long? Is there a way/place to get a shorter cord? And will having a shorter cord affect the quality at all?

Any help is appreciated