Check out the latest Amazon review of "A Funny Thing Happened On The Way To The Moon":

WHY THE WAR OF WORDS?, January 23, 2002
Reviewer: A viewer from USA
IF THEY REALLY WENT TO THE MOON , THEN ANYONE WHO SAYS OTHERWISE IS INSANE AND NOT WORTH THE TIME TO REBUT , YET THERE ARE NUMEROUS WEB SITES THAT HAVE EXPENDED THOUSANDS OF HOURS IN THEIR CONSTRUCTION JUST TO REASSURE US THAT THE SO OBVIOUS MOON LANDINGS WERE , IN FACT , REAL . CURIOUS TOO IS THE FACT THAT IF YOU LOOK UP " MOON HOAX " ON MOST SEARCH ENGINES THE TOP FIVE SITES ARE NOT ABOUT THE MOON HOAX , RATHER ABOUT HOW THE MOON HOAX IS N- O-T TRUE . WE LIVE IN A DARK WORLD . ALONG COMES A FILM THAT CONTAINS NEWLY DISCOVERED UNPRECEDENTED EVIDENCE OF THE GREATEST GOVERNMENT FRAUD IN MODERN HISTORY AND SOMEONE IS SPENDING A LOT OF TIME AND EFFORT TO WARN YOU NOT TO SEE IT . I HAVE SEEN IT . IT IS ABSOLUTELY TRUE . IT WILL ROCK YOUR WORLD AND SOMEBODY KNOWS IT.

Other reviewers claim that Sibrel wrote two of the customer reviews.

I think it's pretty obvious that he wrote this one too.