i have set my box up and am now watch sat channels via the box, i wish to also run cable to the 3rd tuner so i can watch and if need be record thing in hd when im at work, my question is do i have to have cable internet to be able to do this or will any ISP, be ok.

the current supplier to my new house is cable but i would rather not stay with this company if i can help it.

thank you