Advertisements When I put in my HR20 aside my HR10, I had limited lines into the home entertainmer center, so I eventually switched one line off my HR10 to run as a single tuner. I thought, no big deal. I have two tuners on the HR20 (via SWM that I am testing) and one on the HR10. That gives me three tuners. Not bad. Well, I started to get blank recordings on the HR10 and what I thought was a machine that went bonkers (making more and more stations go blank until I rebooted). I was wrong...sort of. What was happening was that the HR10 was using the second tuner even though I ran guided setup to tell it there was only one line. In fact, if I hit the down arrow to try to go to a second tuner, it would give me an error tone. But, when *it* decided to record something, it may use the one tuner or it may "activate" the second tuner. And get a blank signal. After that happens, it appears that it thinks it has two tuners. One works on both OTA and satellite and the other works on OTA. Dual live buffers and all! I could even record on one tuner and use the other to watch live TV (with limits that Tuner 1 could see OTA and satellite and Tuner 2 could only see OTA). I could easily buffer two OTA stations, for example. But, when I tried to record two OTA stations, it got mad at me. It seems this second psuedo-tuner exists until I reboot. And then will crop up again when the HR10 decides that it wants to go to the second tuner on satellite for recording. Then it is back. So, I decided to activate both tuners, use the HR10 for OTA programmed recording only (I can still manipulate the tuners live so I can push the record button if I want to record, say, HBO, but I have to be there to do so). I did this because it was behaving hit or miss anyway, so why not have the ability to record two OTAs? Anybody else running with one line into the HR10 and seeing this or not? Is this specific to 6.3d? (I never noticed it on my old SD Tivo which is now deactivated.) I can live with it as it gives me 1.5 tuners (kind of) on the HR10 with the two on the HR20. If I plan it right, I wind up with four tuners active at once.