Home audio & video forum: How to split the incoming cable signal

You can purchase a cable splitter for a couple bucks at Radio Shack, OSH, Rite Aid, etc. I used one back in college to run cable from my living room to bedroom. The other TVs need to be cable-ready or you need to rent more cable boxes. There might be a problem with signal degradation by splitting it so many times. Any cable installers out there that can speak to that issue.

I actually needed to state my situation clearer.
I can and did split it before the cable box. The TV with the cable box can get both the basic cable and the digital package. All other TVs can only get basic from the incoming line that hooks to the splitter. It must be the cablebox talking with the cable feed source that draws the digital stations to the TV that is hooked to the box. I have 1 cable coming from the same splitter as the other TVs to this box. On the back of the box there is a short cable that loops right back into the box, and then out to the TV. I was wondering if I put a splitter in the path of the short cable( short cable out of box-to splitter-out to all TVs-and one cable back to the box) if I would get digital to all TVs that can watch different stations simultaneously.