I too have managed to obtain a confirmation of this wonderful event through official channels. This is what I received:
EGYPT:SECRET CHAMBERS REVEALED
ONE LIVE TELEVISION EVENT, TWO NEW DISCOVERIES
National Geographic Channel Takes At-Home Viewers Inside The Great Pyramid of Khufu to Reveal an Unexplored Shaft
AND Opens the World’s Oldest Intact Sarcophagus
For 4,500 years a limestone door has blocked an unexplored passage in the southern shaft of the Great Pyramid of Khufu - the only remaining wonder of the Ancient World. This door may hide the secrets of one of the greatest civilisations the world has ever known.
Now, National Geographic Channel and two of the world’s pre-eminent archaeologists take viewers inside the heart of the Great Pyramid in a global, LIVE television event. This is history-in-the-making.
Egypt: Secret Chambers Revealed premieres live on Tuesday 17th September at 1am and will be re-broadcast in the prime-time slot of 9pm. The two-hour premiere takes viewers on site to Egypt’s Giza Plateau to join expedition leaders Drs Zahi Hawass and Mark Lehner.
Dr. Zahi Hawass is head of Egypt’s antiquities and responsible for the pyramids in Giza. He is also a National Geographic Explorer-In-Residence. American archaeologist Dr. Mark Lehner is a National Geographic grantee and an expert on the Old Kingdom. Through their work, both have helped decipher some of history’s most perplexing mysteries – how the pyramids of Giza were built and who built them.
For the first time, we will see what lies behind the mysterious blocking stone in the complex southern shaft of the Queen’s Chamber within the Great Pyramid. A state-of-the-art, custom-built robot equipped with fibre-optic lenses, high-resolution cameras, and the world’s smallest ground-penetrating radar antenna will venture more deeply into the shaft than anyone has since they were built over 4,500 years ago.
In Egypt: Secret Chambers Revealed advanced 3-D computer graphics will recreate the ancient evolution of the Giza plateau, the Great Pyramids, and the Sphinx. Viewers will see how 20,000 legendary pyramid builders moved more than 2 million stone blocks - weighing up to 40 tonnes - into place. These form the colossal pyramid that has stood over 140 metres high and 230 metres wide for thousands of years.
For centuries, the sands hid all evidence of those that built the pyramids – their bones, homes, workshops, streets, and even their harbour. But the discovery of the lost metropolis of the pyramid builders has revealed a place where more than 20,000 people lived and died. The archaeological evidence unearthed has yielded history’s first accurate picture of the men, women, and possibly children who laboured on Egypt’s national project.
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In the workers’ cemetery a historic discovery was recently made. Inside an ancient tomb, Egypt’s oldest intact sarcophagus was unearthed by modern archaeologists. It was inscribed with the title ‘Overseer of the Administrative District’. In our television event viewers will not only see what is behind the blocking stone first-hand. They will also enter the tomb to become live eyewitnesses to the opening of this limestone sarcophagus, sealed for more than 4,500 years. Be there as archaeologists open the lid for the first time.
Egypt: Secret Chambers Revealed is produced for National Geographic Channels International by National Geographic Television & Film (NGT&F). For NGT&F, John Bredar and Lisa Truitt are Executive Producers, and Michael Rosenfeld is Senior Executive Producer. For National Geographic Channel, Executive Producer is Bryan Smith.
Building on the 35-year legacy of National Geographic Television & Film, which has won over 800 top television industry awards, National Geographic Channels International (NGCI) brings the vast resources, unsurpassed quality and real heroes of National Geographic to over 115 million homes (including day-part households) in 141 countries and in 23 languages around the world.
National Geographic Channel Europe is a global partnership of National Geographic Television and Film, BSkyB, Fox Entertainment Group and NBC. NGC Europe contributes to the National Geographic Society’s commitment to exploration, conservation and education.
the broadcasttime mentioned is for UK viewers, so I don't know if it also applies to people in yonder US.