A method of operating an entertainment system includes computer-implemented steps including determining an audiovideo preference profile of the user. At least two cutter support elements are interconnected by means of at least one connecting element of the cutting unit, and the connecting element is essentially flush with at least one outer surface of the at least two cutter support elements. The network element receives from the CPE a request to initiate communications with a diagnostic system coupled to the communications network. The burst start signal receiving portion receives a burst start signal, which represents start of burst transmission of the variable-length serial transmit data, via the burst start line from the receiver.