On additional receivers, you pay either the lease fee for rented unit or the addiotional outlet fee for purchased units. Not both.
Dish 300 is what the original 18" round dish is now known as. It can view 1 DBS satellite (61.5, 110, 119, 148, and soon 129) but can't be used for SuperDISH (105 or 121). It can have a legacy or DishPro Single or Dual output LNB.
Dish 500 is a 20" oval dish that can view 110 and 119. It originally came with 2 dual LNBs, then a legacy Twin, and now a DishPro Twin. Other possibilities are a legacy or DP Quad, and the new DP Plus Twin.
For Dish500 + 61.5 to 4 receivers you will need
- 3 legacy dual LNBs (or a Quad and a dual), SW64
- DP Twin, DP Single (or DP Dual), DP34 (or DPP44)
You can also hook up 4 independent TVs to 2 dual-tuner dual-output receivers
- DP Plus Twin, DP Single (or DP Dual), 2 DPP Separators
All Dish receivers are capable of receiving multiple satellites though some of the oldest ones don't recognize the SuperDISH FSS slots.
Legacy switches:
http://ekb.dbstalk.com/11
DishPro Technology:
http://ekb.dbstalk.com/217
Twin (legacy, DP, DPP):
http://ekb.dbstalk.com/35