TiVo has opened another US avenue for revenue with rural telco combine Frontier Communications. Day one, starting in the middle of 2015 it will be selling TiVo service and devices to its captive broadband base of around 2.4 million broadband lines, but that will change as it completes acquisitions with Verizon and AT&T and shift to 4.6 million US broadband homes. Its networks also pass a total of 7.8 million homes, and the addition of TiVo to its roster may well bring more of those homes on board. Frontier has made a specialism out of delivering to parts of the US that AT&T and Verizon find economically unappetizing, and has recently cut deals to buy customers in Connecticut from AT&T,…