Mike and all you guys,
Your understanding is not quite right.....Here goes!!!!!
I have the Mits that has the hd reciever build in. That is for when the "regular tv transmissions are put out in "HD", which they are not. The only true HD signal is thru sattlelite and that is why you must have the RCA/Hugh box, just like your regular tv had to have Direct tv dish and reciever to get the signals. I currently have Direct Tv (the standart one) which is digital signal but not HD. If it was HD, I would need nothing else to recieve HD signal.
The only reason we need any additional equipment is because none is broadcasting in HD but the 3 (three) channels available from Direct TV. Hope this helps.
The tv's that need the "settop box" are HD capatible or know as HD monitors. The sliver and gold series of Mits are the ones with the built in box for HD signal when it is ready.not for Direct TV>