Who started “David After Dentist”?

David DeVore Sr., on YouTube, Jan 30, 2009. It reached 5 platforms in 12.3 years.

LineageKey steps, 8 of 10. Lines follow time and platform
David DeVore Sr.First postDavid DeVore Sr.Open webThe Wall Street JournalPressPressOwner responsePlatform jumpPeakAfterlifePatient zero