Hi all, I have both an HR20 and an HR10 Hi-Def Tivo on my account. I'm trying to bring down my monthly DirecTV bill. If I cancel HD service through DirecTV: 1) Will they require me to send back the HR20? 2) If not, can I still view OTA local HD on it? 3) Will I still be able to view OTA local HD on the HR10? 4) I am guessing I will not be able to record any of this OTA HD? Thanks.