==== ATSC_data_service_descriptor

Defined by ATSC in <<ATSC-A90>>.

[source,xml]
----
<ATSC_data_service_descriptor
    data_service_profile="uint8, required"
    data_service_level="uint8, required">

  <private_data>
    Hexadecimal content
  </private_data>

</ATSC_data_service_descriptor>
----
