No, you won't get any HD channels with that old dish. The easiest and cheapest way to do this is to call DirecTV and order your HD equipment from them. As a long time subscriber you might get a very sweet deal. And they'll install the new dish, too. Don't buy used stuff off of eBay. Lots of those are stolen or not properly deactivated and DirecTV won't let you use it. Don't take the risk.