1. An electronic broadband network communication system comprising: (a) a separate, connectable network-dependent digital interface conditional access module (DICAM) configured to receive an RF audiovisual signal, and generate therefrom an error-corrected digital signal in a transport stream, the DICAM including a stub; (b) a separate network-independent common module configured to be coupled to an electronically communicate with the DICAM, for receiving the transport stream and generating at least a video output signal therefrom, the common module including a socket coupled to the common module, wherein the stub is configured to be connected to the socket so as to allow the DICAM to electronically communicate with the common module.