Sabu revealed on Twitter yesterday that he was interviewed as part of the production for season three of
Dark Side of the Ring. According to PWInsider the episodes that Sabu spoke for were about the FMW and XPW.
FMW, aka Frontier Martial-Arts Wrestling, originally ran from 1989 to 2002 before being revived in 2015. It was primarily known for its brief working relationship with ECW, as well as being the company that Hayabusa became a star in. It also featured an extreme, hardcore style, as well as the first ever exploding barbed wire match. Other big names who spent time in the company included founder Atsushi Onita, Balls Mahoney, Chris Jericho, Umaga, Gedo, Jado, Jimmy Snuka, Lance Storm, Luther, Masato Tanaka, Mick Foley, Mike Awesome, Genichiro Tenryu, Terry Funk and, of course, Sabu.