I have an HR34 downloaded with the new 0x547 software. For example, the new guide now offers channel 7 and 7-1. I programmed my DVR to record both 7 and 7-1 at noon today to see if there was a difference. At approximately noon I got this message: Tuner Removed. 1. Make sure external tuner is powered on. 2. Disconnect and reconnect all cable ends between external tuner and receiver. I don't understand this message. I don't know what an external tuner is. In fact, I now only have four tuners available for recording. Thanks! .