 The UnXplained (2021–2023) (TV Series)-Self - Author, Hitler's Holy Relics (2 episodes, 2021) Self - Author, Hitler's Holy Relics (2 episodes, 2021) See fewer Strange Stories of World War II (Dec 15, 2023) Season 6, Episode 9-Self - Author, Hitler's Holy Relics Self - Author, Hitler's Holy Relics See fewer The Hunt for Hidden Treasures (Nov 5, 2021) Season 3, Episode 1-Self - Author, Hitler's Holy Relics Self - Author, Hitler's Holy Relics See fewer |
 Drain the Oceans (2022) (TV Series)-Self - True Crime Writer (1 episode, 2022) Self - True Crime Writer (1 episode, 2022) See fewerNarcos (Jan 3, 2023) Season 5, Episode 6-Self - True Crime Writer Self - True Crime Writer See fewer |
 America's Book of Secrets (2021) (TV Series)-Self - Documentary Filmmaker / Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) (1 episode, 2021) Self - Documentary Filmmaker / Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) (1 episode, 2021) See fewerThe Hunt for Hitler's Relics (Jun 15, 2021) Season 4, Episode 5-Self - Documentary Filmmaker / Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) Self - Documentary Filmmaker / Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) See fewer |
 Mysteries at the Monument (2015) (TV Series)-Self - Author (1 episode, 2015) Self - Author (1 episode, 2015) See fewer Pickles Saves the World Cup, Strowger Switch, Rebel Rose (Aug 21, 2015) Season 3, Episode 8-Self - Author Self - Author See fewer |
 Greatest Mysteries (2014) (TV Series)-Self - Author (1 episode, 2014) Self - Author (1 episode, 2014) See fewer American Museum of Natural History (Jun 5, 2014) Season 1, Episode 6-Self - Author Self - Author See fewer |
 Myth Hunters (2012) (TV Series)-Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) (2 episodes, 2012) Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) (2 episodes, 2012) See fewerHimmler and the Holy Grail (Dec 7, 2012) Season 1, Episode 7-Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) See fewerHitler and the Spear of Destiny (Oct 26, 2012) Season 1, Episode 1-Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) Self - Author, Hitler's Holy Relics (as Sidney D. Kirkpatrick) See fewer |
 City Confidential (2007) (TV Series)-Self (1 episode, 2007) Self (1 episode, 2007) See fewer Old Hollywood: Silent Stars, Deadly Secrets (Jan 16, 2007) Season 12, Episode 10-Self Self See fewer |
 Decoding the Past: The Other Nostradamus (2005) (TV Movie)-Self Self See fewer |
 E! Mysteries & Scandals (1998–1999) (TV Series)-Self (2 episodes, 1998) Self (2 episodes, 1998) See fewer Mabel Normand (Oct 18, 1999) Season 2, Episode 34-Self Self See fewer William Desmond Taylor (Jun 8, 1998) Season 1, Episode 14-Self Self See fewer |