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Amazing Underground Secrets Previous Broadcasts

Mastering The Underground World (Episode #103H)

KQED 9: Wed, Jul 30, 2014 -- 11:00 PM

It's a whole new world down there if we can conquer its challenges. Some of the greatest human minds have been engaged in making the underground safe and accessible. In this program we look at the most breathtaking feats of technology, past and present. From pick-axed tunnels to an excavated mountain, from Roman sewers to a vast 27km long particle accelerator - these are the ways we've harnessed the potential of this, the planet's last frontier.

Repeat Broadcasts:

  • KQED 9: Thu, Jul 31, 2014 -- 5:00 AM

Secrets & Treasures (Episode #102H)

KQED 9: Wed, Jul 23, 2014 -- 11:00 PM

The underground world is one of secrets, ideal for hiding everything from misdeeds to the world's greatest works of art. This program reveals some of the most exciting discoveries of buried treasure - then takes us to another kind of secret, the sort that governments like to hide, not just from their enemies, but from their own people. From ancient history right up to the present day, the underground world is the first choice for those seeking concealment.

Repeat Broadcasts:

  • KQED World: Sun, Jul 27, 2014 -- 5:00 PM
  • KQED Life: Sat, Jul 26, 2014 -- 4:00 AM
  • KQED Life: Fri, Jul 25, 2014 -- 10:00 PM
  • KQED 9: Thu, Jul 24, 2014 -- 5:00 AM

Natural Wonders (Episode #101H)

KQED 9: Wed, Jul 16, 2014 -- 11:00 PM

Much of the underground world is carved by nature; many of its greatest treasures are the result of elemental processes as old as the planet itself. We haven't been slow to make use of these extraordinary and dramatic spaces - they provide us with a record of our earliest history, if we know where to look. But it's a dangerous, often threatening realm, with its dark caverns, narrow environments and rushing water. Far from the light of day we join intrepid underground explorers as they push back the boundaries, make amazing discoveries and share sights of remarkable beauty.

Repeat Broadcasts:

  • KQED Life: Sat, Jul 19, 2014 -- 4:00 AM
  • KQED Life: Fri, Jul 18, 2014 -- 10:00 PM
  • KQED 9: Thu, Jul 17, 2014 -- 5:00 AM
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TV Technical Issues

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    TV ? Transmitter Status
    • 6/04/18: KQET Signal Loss

      KQET (DT25.1, 25.2 & 25.3) was unable to transmit from late Saturday 6/02 through early Monday 6/04 due to a break in the third party fiber feed somewhere between KQED?s Master Control room in San Francisco and the uplink reception point at California State University Monterey Bay. The break was found and fixed shortly after … Continue reading 6/04/18: KQET Signal Loss

    • DIRECTV KQED Plus 54 HD Issue

      We are experiencing a technical issue with DIRECTV which has affected our broadcast in High Definition.  We appreciate your patience, and for watching KQED Public Television!

    • KQED World Technical Issue

      UPDATE: The technical issue that we were experiencing has been resolved. KQED WORLD has now resumed regularly scheduled programming. Please find a discrepancy report below. 13:00-13:32 ET Secrets of the Dead #1602: Van Gogh?s Ear 13:32 ET: Regularly scheduled programming resumes ***Due to a technical issue, KQED WORLD will be airing evergreen programming (Secrets of … Continue reading KQED World Technical Issue

To view previous issues and how they were resolved, go to our TV Technical Issues page.

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