Current system setup. 2-vip 722 and 2-vip722k. Both Vip722 use the built in OTA tuner. Looking to try out Hopper Duo receiver. Question #1 : Can a Hopper Duo be on an account with Vip units ? , #2 - Will I loose Grandfathered DVR fee ? , # 3 - Can the hopper duo use a OTA dongle for OTA ? . Before you guys get all crazy about suggesting a Hopper 3 , everyone in the household likes there own DVR . Thank You.