I went through the SNF playlist and figure out what was played in episode 1, but the playlist is only 98 videos (one of which is hidden) the first video is "Captain Funn's Whimsey- Sharp Practice 2" which, I think, was the first time I commented during the stream.
Doh, Episode 100 is in 2 weeks, so Captain Funn's Whimsey (Part 1) is the first SNF.