DIRECTV AM21N TV Tuner Technical Information - Functions - TV Tuning, Digital TV Receiver, Video Recording; Video System - ATSC; Interfaces/Ports - USB; Weight (Approximate) - 5 lb Technical Information - Functions - TV Tuning, Digital TV Receiver, Video Recording; Video System - ATSC; Interfaces/Ports - USB; Weight (Approximate) - 5 lb Technical Information - Functions - TV Tuning, Digital TV Receiver, Video Recording; Video System - ATSC; Interfaces/Ports - USB; Weight (Approximate) - 5 lb