Donate

Time Scanners Previous Broadcasts

Machu Picchu (Episode #106H)

KQED World: Fri, Jul 22, 2016 -- 6:00 AM

Join a team of laser-scanning experts in the Inca city to answer three main questions. How did the Inca build a city atop a mountain ridge? How were the terraces constructed? How did they supply water to the city?

Repeat Broadcasts:

  • KQED World: Fri, Jul 29, 2016 -- 1:00 PM
  • KQED World: Fri, Jul 29, 2016 -- 7:00 AM
  • KQED World: Wed, Jul 27, 2016 -- 8:00 AM
  • KQED World: Wed, Jul 27, 2016 -- 2:00 AM
  • KQED World: Mon, Jul 25, 2016 -- 1:00 AM
  • KQED World: Sun, Jul 24, 2016 -- 1:00 AM
  • KQED World: Fri, Jul 22, 2016 -- 12:00 PM

Jerusalem (Episode #105H)

KQED World: Fri, Jul 15, 2016 -- 7:00 AM

Explore Jerusalem's building legacy, from the walls of Temple Mount to the man-made mountain of Herodium. Experts use 21st-century technology to analyze constructions from the time of Christ and solve centuries-old mysteries behind their creation.

Repeat Broadcasts:

  • KQED World: Thu, Jul 21, 2016 -- 1:00 PM
  • KQED World: Thu, Jul 21, 2016 -- 7:00 AM
  • KQED World: Wed, Jul 20, 2016 -- 8:00 AM
  • KQED World: Wed, Jul 20, 2016 -- 2:00 AM
  • KQED World: Mon, Jul 18, 2016 -- 1:00 AM
  • KQED World: Sun, Jul 17, 2016 -- 1:00 AM
  • KQED World: Fri, Jul 15, 2016 -- 1:00 PM

Colosseum (Episode #104H)

KQED World: Fri, Jul 8, 2016 -- 7:00 AM

The team uses incredible new laser-scanning technology to uncover the engineering secrets behind ancient Rome's Colosseum. Structural engineer Steve Burrows leads his team of laser-scanning experts to Rome in Italy on a quest to uncover some of the engineering world's oldest mysteries of the Colosseum. Using cutting-edge 3D laser-scanning technology, the team want to answer three questions. How did the Romans produce some of the most impressive gladiatorial games ever seen in Europe? How did the Colosseum's mysterious roof really work? Finally, how does the mighty Colosseum perform in state of the art computer testing against the sports stadiam of the 21st century? Armed with incredible scanning technology, the data will provide the clues to help Steve find the answers.

Repeat Broadcasts:

  • KQED World: Wed, Jul 13, 2016 -- 8:00 AM
  • KQED World: Wed, Jul 13, 2016 -- 2:00 AM
  • KQED World: Mon, Jul 11, 2016 -- 1:00 AM
  • KQED World: Fri, Jul 8, 2016 -- 1:00 PM

Petra (Episode #103H)

KQED World: Fri, Jul 1, 2016 -- 7:00 AM

Structural engineer Steve Burrows leads his team of laser-scanning experts to Jordan to scan the ancient desert city of Petra. Using 3D laser-scanning technology, he wants to uncover its construction secrets and shed new light on this architectural wonderland lost to the West for more than 1000 years.

Repeat Broadcasts:

  • KQED World: Wed, Jul 6, 2016 -- 8:00 AM
  • KQED World: Wed, Jul 6, 2016 -- 2:00 AM
  • KQED World: Fri, Jul 1, 2016 -- 1:00 PM
Become a KQED sponsor

TV Technical Issues

TV
    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.

KQED DTV Channels

KQED 9, KQET

KQED 9 / KQET

Channels 9.1, 54.2, 25.1
XFINITY 9 and HD 709
Wave, DirecTV, Dish Network, AT&T U-verse: Channel # may vary, labeled as KQED, or as KQET in the 831 area code.
Outstanding PBS programming, KQED original productions, and more.

All HD programs

KQED Plus, KQET

KQED Plus / KQEH

Channels 54.1, 9.2, 25.2
XFINITY 10 and HD 710
Wave, DirecTV, Dish Network, AT&T U-verse: Channel # may vary, labeled as KQEH
KQED Plus, formerly KTEH.
Unique programs including the best British dramas, mysteries, and comedies.

PBS Kids

PBS Kids

Channel 54.4, 25.4, and 9.4
XFINITY 192 (Monterey/Salinas 372 and Sacramento/Fairfield 391)
Wave: Channel # may vary.
Quality children's programming. Live streaming 24/7 at pbskids.org.

KQED World

KQED World

Channel 9.3, 54.3 and 25.3
XFINITY 190 Monterey/Salinas 371 and Sacramento/Fairfield 390)
Wave: Channel # may vary.
Thought-provoking television — public affairs, local and world events, nature, history, and science.