While my husband and I have been camping in a rv for over 30 years, we have never had or wanted a tv - so we haven't learned the ins and outs of tv usage in a camper. The new rig we bought has 2 tv's (getting ready for retirement) and I have a question regarding their use. I understand tv attenae and the booster button, but how do I get cable signal to my bedroom tv when at a site that provides basic cable?