Methods and systems for cross-protocol time synchronization may comprise, for example, in a premises-based network, receiving, by a root node network controller in the premises, signals that conform to one or more first communications protocols. The received signals may be bridged to conform to a second communications protocol different from the first communications protocol, and the bridged signals may be communicated to networked devices within the network, where only signals conforming to the second communications protocol may be concurrently communicated over the network in a frequency range of the first communications protocol and in a frequency range of the second communications protocol, the frequency range used by the first communications protocol being different from and not overlapping with the frequency range used by the second communications protocol. The first communications protocol signals may comprise data over cable service interface specification (DOCSIS) signals, cable, and/or or satellite television signals.