Wrestling Extravaganza May 21, 1985

This event was a huge deal, and  DVD of it just came available on Ebay.   Portland Owen 60th Anniversary DVD

Here is the text of the description:

• Owen Family Extravaganza 60th Anniversary Show DVDRunning Time: 1 3/4 hrs
  Quality: GD
  The very last time that wrestlers from the AWA, WWF and NWA would wrestle together on the same show. May 21st 1985 was the most important day in Pacific Northwest Wrestling history. The Northwest had seen its share of exciting things pertaining to professional wrestling and had broken ground and paved the way for many promotions across the country. In 1949 Don Owen, the son of Herb Owen, who had been promoter of Portland Wrestling since 1925 taped the very first professional wrestling program ever to hit the airwaves anywhere in the world. It was a landmark achievement and led to the formation of many other professional wrestling television shows, but it was one of very few that was broadcast live. Portland Wrestling had been a part of the NWA since it’s inception in 1947 and would be the last remaining of the original member promotions, lasting five years longer than the next longest when it closed its doors in 1992. Don Owen brought Portland Wrestling into its golden age during the 1960’s, 70’s and early 80’s but not without the help of his sons Barry and Mark or his brother Elton. In 1985, to celebrate the contributions of the Owen family to professional wrestling in the Pacific Northwest, Portland Wrestling put on this show. It was the biggest super card in the history of the promotion, and the very last time that wrestlers from the AWA, WWF and NWA would wrestle together on the same show and just two months after WrestleMania. May 21st 1985 from the Portland Memorial Coliseum in Portland, Oregon in front of an estimated crowd of 13,000 fans.
  (1) Roddy Piper vs. Buddy Rose
  (2) Kendo Nagasaki vs. Sgt. Slaughter
  (3) AWA Tag Team Championship: Road Warriors vs. Hennigs
  (4) AWA Title: Rick Martel vs. Mean Mike Miller
  (5) NWA Title: Ric Flair vs. Billy Jack Haynes