Daniel began in radio by making guest appearances on various radio programs and podcasts in 2011. In 2012, the Lord directed him to launch Discovering the Truth with Dan Duval. This podcast began as an investigation into conspiracy, the developing New World Order, and subjects related to end-times Bible prophecy.

Over the years, it has evolved to include a strong outreach to survivors suffering from Dissociative Identity Disorder (DID) due to satanic ritual abuse and government sponsored mind control. This program also exposes the Illuminati from the inside out, featuring many testimonies of Illuminati defectors. In addition, there is a huge focus on the Kingdom of God, victorious living, inner healing, and deliverance.