Hi. New here. I just upgraded to Hi def and have installed the AT9 5 lnb dish and have an H20 receiver. I wasn't sure about whether the B Band converter included with the Receiver was necessary so initially I never installed it. Everything was and is working fine INCLUDING receiving my locals in HD through the direct TV dish and receiver. After a week I decided to check into it what the B band converter was for and find out that I am supposed to need this to get the locals in HD over the AT9. I called DirecTV and 2 techs say that I should NOT be getting the locals through the Dish and Receiver without the convertor, yet I am. There is no OTA in the system and the locals are 100% definitely working and in HD without the B band convertor. So, my question is what gives? I assume that there must be a built in convertor somewhere in the receiver or built in Multiswitch at the dish, right? But DirecTV themselves as well as every thing I see on the net says no, a convertor is not built in and I must use the B Band converter. So unless they are wrong and there is a built in convertor somewhere (or an FTM? if I read that correctly), what is going on? Why can I receive the locals, and in HD to boot, WITHOUT using that supplied converter? again, there is definitely NO off air antenna installed either. Also, the H20 Receiver has a sticker on back indicating that it was manufactured in 2005 so my H20 is not from a new production run. Thanks in advance for an explanation or any ideas.