I called in last night and went round and round with a girl in Tech support (American in Virginia center). She kept insisting that it was 6 TUNERS. She said I could only have my 2 622's and 1 721 connected. That was 6 TUNERS... She said I couldn't activate a 311 because that would be 7 tuners. I insisted that it was 6 RECEIVERS. She said no... it is 6 TUNERS and only 4 TUNERS if your boxes are leased. I told her that all of mine were purchased and I could have 6 receivers. she again insisted it was 6 TUNERS. She put me on hold and asked a supervisor. They also told her it was 6 TUNERS... NOT RECEIVERS...
Maybe dish needs to hire the Satelliteguys.us members to run their call center, or use this website for their answers.