Inside the Home Theater. Two receivers (the HDTV Dish 6000, on top, and the PVR 501 video recorder, under the 6000 and on top of the Nakamichi Cassette Deck) accept two of the four signals from the multiswitch. (Two receivers allows watching one program and recording another). Update: Dish 921 HD PVR with 2 tuners has replaced these two receivers in the home theater.