Just thought of something else too.... I plan on leaving Comcast cable in my house too... along with Dish sat. Just raw cable.. not even one cable box... for one room. As cheap as possible. So I was thinking... if the DT Tivo may require a analog cable signal for one of the tuners that's ok b/c I'm wired and keeping cable anyway. But I was thinking... you set the TIVO up to do programming for one type of service. I can't have Dish coming into one connection on the TIVO and comcast cable into the other TIVO connector. The TIVO can't do that right?