Upgrading a standard DirecTv receiver to a HD receiver using existing line?

Question by KGB9108: Upgrading a standard DirecTv receiver to a HD receiver using existing line?
Our house has 3 receivers: 1 HD, and 2 standard receivers. We have the upgraded HD satellite dish, but the line going to the standard receivers is still from the standard Directv service. Will a HD receiver receive HD signals over [...]

DISH Network dp 301 – Satellite TV receiver – DISH network

DISH Interactive Electronic Program Guide (EPG) and interactive capabilities
Favorites lists, program information, themes lists, program browse
Parental control locks
Infrared (IR) 4-component universal remote control can be programmed to operate up to three additional components, like TVs, VCRs and DVD players.
Smart Card

DISH 301 is DISH Network’s entry-level feature-rich satellite receiver with a sleek, slim-line chassis design. DISH [...]

H21-200 Hdtv Directv Receiver 110V W/Ir Remote

Product Description
KVH H21-200 HDTV DIRECTV RECEIVER 110V W/IR REMOTE… More >>

AM / FM / HD Radio Outdoor Antenna “Probably the Best Ever AM/FM Antenna for Every Home Theater Receiver”.

Best-in-class pro-quality outdoor AM / FM / HD Radio Antenna
Receive stations up to 90 miles (see test results in Product Description)
All signals multiplexed on a single RG-6 cable (not included)
Includes surge protector and all required adaptors and jumpers
Omni-directional for reception of stations from all directions

Product Description
Designed for easy outdoor or attic installation with rugged pro-quality [...]

Where can i get a dish network receiver?

i got dish network service about a year ago. at the time i only got one box. according to dish network i have to pay the retail price if i want any more receivers. what i want to know is is their any website where i can get receivers at a reasonal price. im looking [...]