what is the difference btw these:
DIRECTV R15 2-Room 100 Hours DIRECTV Plus DVR Satellite TV System (1) R15 (1) D11 with Triple LNB Dish & Standard Installation
DIRECTV 2-Room R15 100 Hour DIRECTV DVR System (2) R15 DIRECTV DVR Receivers with Triple LNB Dish, Multi-Switch & Standard...