I have cable internet and my setup is basically like this:
I have one cable outlet coming into the living room where the TV is and a cable running from that outlet to the TV;
I have another cable outlet in our office/study/computer room and a cable running from the outlet to the cable box. There is then an Ethernet cable running from the cable box to the back of my PC.
When you have your cable service set up, you can probably ask the tech (of the person on the phone when you order the service) if they will run the cable connection into multiple room. Depending on whether you have a crawl-space, attic, or basement you may have cables running along the outside of the house, in the attic, crawl-space, etc and then ‘punched-down’ to the rooms you requested.
I am not a cable installer, but I know the theory and I have seen it done at several houses I have lived in.
Hope this helps.