In one aspect, a joint assembly is provided. One of the systems includes a master radiofrequency generator for generating a first portion of a master RF signal during a first state and a second portion of the master RF signal during a second state. The high-resistance buffer layer and the n-type transparent conductive film are formed of thin films of a zinc oxide group. As a result, a multiplication of the filter channels effectively made available can be achieved using only a few different bandpass filters. Packets are removed from the media stream to allow inclusion of the insertion stream.