Producer David Dortort on Pernell Roberts leaving "Bonanza" - TelevisionAcademy.com/Interviews

Producer David Dortort on Michael Landon writing scripts for "Bonanza"

Producer David Dortort on Lorne Greene on "Bonanza" - TelevisionAcademy.com/Interviews

Producer David Dortort on the "20th Century Fox Television Hour" - TelevisionAcademy.com/Interviews

1999 Archival Interview with "Bonanza" Producer David Dortort

Producer David Dortort on serving in the Army during World War II - TelevisionAcademy.com/Interviews

Producer David Dortort on the Hollywood Blacklist - TelevisionAcademy.com/Interviews