Broadcasting protocols can improve the efficiency of video onndemand services by reducing the bandwidth required to transmit videosnthat are simultaneously watched by many viewers. We present twonbroadcasting protocols that achieve nearly the same low bandwidth as thenbest extant broadcasting protocol while guaranteeing a lower maximumnaccess time. Our first protocol, cautious harmonic broadcasting,nrequires somewhat more bandwidth than our second protocol,nquasi-harmonic broadcasting, but is also much simpler to implement
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