As of this writing, all episodes from 1995 and 1996 of WCW’s flagship show Monday Nitro are available to stream on the WWE Network.
The episodes are from the first one, September 4, 1995 to December 30, 1996, with more expected to be uploaded for a total of over 100 hours. Nitro was a one hour show in the first couple of years so that would mean 2 years worth of shows.
In total there are so far 67 episodes of the show and they are oddly numbered, with the first ever episode titled Nitro 79.
All the WCW Monday Nitro episodes are in the Vault section of the WWE Network.