• 3 History
• 1 Assassination
• 1 Athletic Injuries
• 1 Brain
• 1 Brain Concussion
• 1 Brain damage
• 1 Church of Jesus Christ of Latter-day Saints
• 1 Concussion
• 1 Conspiracies
• 1 Drug abuse
• 1 Ethics, Research
• 1 Football
• 1 Football injuries
• 1 Hippies
• 1 Kennedy, John F. (John Fitzgerald), 1917-1963
• 1 Kings and rulers
• 1 Latter Day Saints
• 1 Mayas
• 1 Moral and ethical aspects
• 1 National Football League
• 1 Nineteen sixties
• 1 Oswald, Lee Harvey
• 1 Patients
• 1 Politics and government
• 1 Social life and customs

• 2 PBS Home Video
• 2 WGBH Educational Foundation
• 1 Ambrica Productions
• 1 Barnes, Jane
• 1 British Broadcasting Corporation
• 1 Channel Four (Great Britain)
• 1 Dietz, Kathryn
• 1 Dolgin, Gail
• 1 Fainaru, Steve
• 1 Fainaru-Wada, Mark
• 1 Franco, Vicente
• 1 Helen Whitney Productions
• 1 KQED-TV (Television station : San Francisco, Calif.)
• 1 Kirk Documentary Group
• 1 Kirk, Michael
• 1 Kleszy, Don
• 1 Lionelli, Gary
• 1 Lyman, Will, 1948-
• 1 PBS Distribution (Firm)
• 1 Paramount Home Entertainment (Firm)
• 1 Paramount Home Video (Firm)
• 1 Providence Pictures, Inc
• 1 Public Broadcasting Associates
• 1 Public Broadcasting Service (U.S.)

• 6 English
• 1 Chinese

• 3 United States
• 1 California
• 1 China
• 1 Copán (Department)
• 1 Copán Site (Honduras)
• 1 Haight-Ashbury (San Francisco, Calif.)
• 1 Honduras
• 1 San Francisco
• 1 San Francisco (Calif.)

• 6 Documentary television programs
• 4 Video recordings for the hearing impaired
• 2 Television
• 2 Television series
• 1 Films for the hearing impaired
• 1 Historical
• 1 Historical television programs
• 1 Nonfiction television programs
• 1 Religion
• 1 Sports
• 1 Television special
• 1 Video recordings for people with visual disabilities

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