I've never been to Burning Man but this 700 Club report from 1996 really sells that year's festival theme of "The Inferno!" From the blog of Oliver Bonin, director of the Burning Man documentary Dust & Illusions:
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In 1996 a group under the name “The Sentinel Group” goes to Burning Man, right during the year themed as “HELL” [sic]. After gathering hours of footage during the event, they went to the TV show “The 700 Club” hosted by the wealthy, supposedly christian, Pat Robertson, one of those extremists that you can find only in America, preaching the bible and making millions at the same time.
I found this incredible excerpt of the 700 Club during my search for archival footage about Burning Man.