Newbie question: I need to re-wire about 70 feet of coaxial cable from one end of my house (where the Adelphia cable is entering my home) to the other end of my basement, where my 65" prtv is. Is there a particular type (rg-6 I assume?) to buy, and would I need a signal booster?. Also, how much signal, if any, do you lose if the original cable lead (entering my home) is cut, reconnected to better cable with a Ftype coupler, but never split? thanks!