HR20 recievers

Correct me if I'm wrong, but didn't the OTA tuner work even if the box wasn't authorized? They had excellent gen 5 Zenith tuners in them.
 
To add some clarity to the conversation, the HR20 and H20 require an active access card in order to use them for OTA viewing.
The H10 and HR10, on the other hand, do not require an active access card. They do require that an access card be inserted though.
 
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