You mention the "Dish salesman"...who have you contacted to set up your service? Did you call a number in a flyer that came in the mail? Or a retailer? Or the main number (which is 800-333-3474)? I would suggest NOT calling any number that is on a flyer that comes in your mail or Sunday paper, those are national retailers (GoDish, InfinityDish, etc), and many people have had many problems with them. They make the sale, then drop you like a hot potato, letting Dish clean up the mess they made (misleading comments about packages, receivers, etc).
Contact the main number (800-333-3474) or a TRUSTED local retailer.
(Edit) ditto what JSheridan said, those aren't in the AT120, but are included in the Heartland package, which is an extra $6/month.