In 2016, Pulitzer appeared as a treasure hunter on The Curse of Oak Island on the History Channel. He searched for the Ark of the Covenant and working with amateur historians from the Ancient Artifact Preservation Society he claimed that a sword found in the waters off Oak Island in Nova Scotia had “magical magnetic properties” and was evidence of Roman presence in North America and contact with the Miꞌkmaq, which a historian of that people dismissed. An archaeologist and a science writer criticized Pulitzer’s claim, suggested the sword was a replica said that Pulitzer threatened to sue them.