So I had my install today and I was given the new HR21 HDDVR which is a pretty slick looking black receiver. But it has no Antenna Input. I called directv to ask about it because I wanted to be able to record two shows at one, PLUS the antenna for 3 things at one. They said that this was never possible with the directv receivers, that you could only ever record TWO things at one, even with an antenna. Coming over from Dish Network, this is disappointing.