Futurist and author Ari Wallach discusses his PBS series “A Brief History of the Future,” exploring innovations and ideas, from 3-D printed homes to fusion energy, that could solve our biggest challenges and lay the foundation for a better tomorrow.

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FIRING LINE WITH MARGARET HOOVER airs on PBS. Launched in June 2018, Firing Line maintains the character of the original series by William F. Buckley Jr., providing a platform that is diligent in its commitment to a balanced exchange of opinion. In weekly 30-minute episodes, host Margaret Hoover engages in a rigorous exchange of ideas with political leaders, cultural luminaries, thought leaders and activists who represent a wide range of ideas and perspectives. New episodes are available Fridays here on YouTube at 8:30 pm ET.