==== NVOD_reference_descriptor

Defined by DVB in <<ETSI-300-468>>.

[source,xml]
----
<NVOD_reference_descriptor>
  <!-- One per service -->
  <service transport_stream_id="uint16, required"
           original_network_id="uint16, required"
           service_id="uint16, required"/>
</NVOD_reference_descriptor>
----
