I have a Toshiba Dvd video recorder. I have just local channels through cable so I do not have a cable box. When I connect the recorder to my TV I can play a dvd but can not record. I have tried changing the input on both the TV and dvd with no luck. The unit did work before when I had a cable box. So my question is do I need some kind of splitter a/b box ? The recorder is not that old. I have read the booklet over and over and checked the connections. I have even tried on a dfferent TV. All my tvs just use the coaxial cable from they wall right in the TV.