The IWA lasted about two and a half years from the first tv taping in
Jan. 1975 until the summer of 1977. However during the early to mid-eighties,
the original shows aired again and a few house shows were done with some
of the guys featured on those shows.

haha Niles, I was thinking the exact same thing.  
 
It's like making a pilot TV episode in 1997 and picking the series up 10 years later, my how things would change