DirecTV is no longer carrying Channel 12.3, MHz Worldview, on their local lineup, but viewers can contact DirecTV and subscribe to their international World Direct Package. MHz Worldview is carried there on channel 2183. This service is free, but you will need to get a second dish (for a one-time fee of $20).
You can also stream MHz on your iPhone, iPad, Roku, MobiTV, AudioNow, Google TV and Android devices.
Visit the CPT12 website for more details.