- The Warrior Within (2024) – Writer, Producer, Director & Editor; An independent documentary on the immunotherapy revolution.
- Stopping the Next Pandemic (2023), Researcher & Writer; Developed the shooting script for a feature documentary investigating the threat of future pandemics (Best Environmental Film, Cannes World Film Festival). Georama TV Productions & ARTE France.
- The Cannabis Question (2021) – Writer, Producer, Director & Editor; An examination of the scientific evidence for cannabis's medical uses, potential benefits, and risks. NOVA/PBS.
- Decoding COVID-19 (2020) – Writer, Producer & Director; A documentary following the race to understand and stop the virus driving the COVID-19 pandemic (Alfred I. duPont–Columbia Award). NOVA/PBS.
- The Truth About Fat (2020) – Writer, Producer, Director & Editor; A film exploring how body fat is shaped as much by biology as by personal choices. NOVA/PBS.
- ADDICTION (2018) – Writer, Producer, Director & Editor; A film investigating how drugs alter the brain and why addiction is a chronic, treatable condition rather than a moral failing. NOVA/PBS.
- Day the Dinosaurs Died (2017) – Writer, Producer, Director & Editor; A film exploring how a seven-mile-wide asteroid triggered a global cataclysm and mass extinction. NOVA/PBS.
- The Origami Revolution (2017) – Writer, Producer, Director & Editor; The story of how scientists and engineers are harnessing the power of folding to transform technology and design. NOVA/PBS.
- Can Alzheimer's Be Stopped? (2016) – Writer, Producer, Director & Editor; A film following the race to unravel the causes of Alzheimer's disease and develop treatments to slow or prevent it. Tangled Bank Studios and NOVA/PBS.
- Mass Extinction: Life at the Brink (2014) – Writer, Producer, Director & Editor; A film exploring what Earth’s past mass extinctions can teach us about the threats facing life today. The Smithsonian Channel &Tangled Bank Studios.
- Cracking Your Genetic Code (2012) – Writer, Producer, Director & Editor; A film exploring the promise and ethical dilemmas of a new era of personalized, gene-based medicine (AAAS Kavli Science Journalism Award). NOVA/PBS.
- Long Distance Warrior (2010) – Writer, Producer, Director & Editor; A one-hour biography of William McGowan and his battle to break up AT&T’s telecommunications monopoly. PBS.
- What Darwin Never Knew (2009) – Producer; A two-hour special exploring the hidden genetic mechanisms of evolution that Charles Darwin could not explain during his lifetime. NOVA/PBS.
- Rx for Survival: A Global Health Challenge (2005) – Writer, Producer, Director & Editor of Rise of the Superbugs, part of a six-hour series exploring the history of public health and the ongoing global struggle against infectious diseases (Emmy Award). PBS.
- Shackleton's Voyage of Endurance (2002) – Producer, Writer & Editor; A two-hour special chronicling Ernest Shackleton’s legendary attempt to cross Antarctica (Emmy Award). NOVA/PBS.
- 18 Ways to Make a Baby (2001) – Producer, Director, Writer & Editor; A documentary on the history and development of in vitro fertilization (IVF) and the ethical questions raised by emerging reproductive technologies (AAAS Kavli Science Journalism Award). NOVA/PBS.
- Trillion Dollar Bet (2000) – Writer, Producer & Editor; The story of a mathematical formula that revolutionized modern finance and helped create a multitrillion-dollar industry. NOVA/PBS.
- The Rockefellers (2000) – Editor; A two-hour special chronicling John D. Rockefeller’s ruthless rise to become the world’s first billionaire through the Standard Oil monopoly, and subsequent generations’ quest for redemption. American Experience/PBS.
- MacArthur (2000) – Director, Co-Producer & Editor; A four-hour biography of General Douglas MacArthur. (Emmy Award). American Experience/PBS.
- Science Odyssey (1998) – Co-Producer & Editor of Matters of Life and Death, the second episode of a six-part series exploring a century of scientific discovery. PBS.
- The Richest Man in the World (1997) – Editor; A two-hour biography of industrialist Andrew Carnegie. American Experience/PBS.
- Ike (1993) – Editor, Part One; A two-hour biography of President Dwight D. Eisenhower. American Experience/PBS.
- Nixon: (1990) – Editor, Part Two; A three-hour biography of Richard Nixon. American Experience/PBS.
NOVA ScienceNow (2007–2011)
Writer, Producer, Director & Editor of individual segments for the PBS science series.
- How Does the Brain Work? – Artificial Intelligence
- Can We Live Forever? – Body Parts
- Can We Make It to Mars? – Space Dangers; Space Food
- How Memory Works – (AAAS Kavli Science Journalism Award)
- The Anthrax Investigation
- Epigenetics
Hosted by Neil deGrasse Tyson. NOVA/PBS.