
William Lyman (born May 20, 1948) is an American actor. Being known for his polished, resonant voice, Lyman has narrated the PBS series Frontline since its second season in 1984 and played William Tell in the action/adventure television series Crossbow.
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How did PFAS chemicals once used in popular stain-resistant carpets end up in the water and environment in parts of Georgia, Alabama and South Carolina? FRONTLINE, The Associated Press, The Atlanta Journal-Constitution, The Post and Courier and AL.com investigate what happened with these forever chemicals and the ongoing health impacts. The joint investigation draws on thousands of pages of documents and court depositions and interviews with former regulators and industry insiders, as well as doctors, scientists and people who have the kinds of illnesses that researchers have linked to PFAS contamination.

An orphaned teen hits the road with a mysterious robot to find her long-lost brother, teaming up with a smuggler and his wisecracking sidekick.

A grief-stricken arborist and her son awaken a haunting when they begin felling trees at the estate of a mysterious recluse.

FRONTLINE investigates China’s rule over Tibet. With footage from inside the region, the documentary examines how the Communist regime controls Tibet’s Buddhist population, and the battle over the succession of its spiritual leader, the Dalai Lama.

Tracing the dramatic and controversial rise of Robert F. Kennedy Jr., FRONTLINE examines how the scion of a storied dynasty endured tragedy and scandal, broke with the Democratic Party and his family, stoked conspiracy theories, and is reshaping government and public health.

FRONTLINE goes inside the high-stakes showdown between President Donald Trump and the courts over presidential power. Trump allies, opponents and experts talk about how he is testing the extent of his power; the legal pushback; and the impact on the rule of law.

A returning war veteran, stricken with PTSD, gets trapped with his teenage sister on Boston's Tobin Memorial Bridge when a heavily armed group of ex-military revolutionaries take everyone hostage.

FRONTLINE investigates the roots of the criminal cases against former President Trump stemming from his 2020 election loss. With the presidential race for 2024 underway, veteran political filmmaker Michael Kirk and his team examine the House Jan. 6 committee’s evidence, the historic charges against Trump and the threat to democracy.

FRONTLINE examines how thousands of Ukrainian children have been taken and held in Russian-controlled territory since Russia’s 2022 invasion of Ukraine. The documentary follows Ukrainian families searching for their missing children, organizations investigating the alleged abductions and Ukrainian teenagers who escaped and say they were subjected to Russian propaganda.

A firestorm has been raging on many American college campuses. Ignited by the devastating October 2023 Hamas attack on Israel and the catastrophic war in Gaza, the outrage deeply divided American campuses and in some places devolved into hate-filled rhetoric and arrests. FRONTLINE and Retro Report have been following the escalating turmoil since the war began — talking to people on all sides of the divide, investigating how universities have responded, how powerful interests joined the fray, and how the conflict over the conflict ultimately spiraled out of control. From director James Jacoby (Netanyahu, America & the Road to War in Gaza, Amazon Empire, Age of Easy Money) and Retro Report producers Scott Michels and Joseph Hogan, Crisis on Campus examines how the debate over one of the world’s most intractable and complex conflicts has gripped American college campuses.
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