He promised his friend he would post reactions to all of season one of MLP: FiM, but he hasn't exactly fallen in love with the show yet based on the first three episodes.  He may need some more convincing to keep going.

UPDATE: Unfortunately, Neutral has since made many of his videos from seasons 1 and 2 private (likely due to being blocked by copyright claims).  Below are the playlists where you can look through the ones that are still up, including playlists for unlisted videos from seasons 3, 4 and 5.

Season 1 (only 4 episodes remain available) - https://www.youtube.com/playlist?list=PLGWuIu7alPz1JG9Vqyvl7Oig94zLyEUHp

However, my highlight videos of the best of MasterNeutral's season 1 commentaries are still up:
https://www.youtube.com/playlist?list=PLqiRm1OsO96eDupDOFLf8s5g-z2Hb7Y5P

Season 2 - (episodes 20-26 still available) - https://www.youtube.com/playlist?list=PLGWuIu7alPz3I38Wu6SdNkaE7HViRMfA1

Season 3 -
https://www.youtube.com/playlist?list=PLGWuIu7alPz1laOk0qBd5Kj67kIH58QHA

Season 4 - https://www.youtube.com/playlist?list=PLGWuIu7alPz055Qmtil0BsHPwr28RTX3l

Season 5 - https://www.youtube.com/playlist?list=PLGWuIu7alPz299j-eli64uWqcBcoYAfUD
New commentator's channel:
http://www.youtube.com/MasterNeutral1

Music from:
I Would Guide You (I Would Die For You), from Legend of Spyro: Dawn of the Dragon