Hopefully I have to the Plex one hour off bug; I upgraded to 1.20.0.3125 and still had the issue. I did find however that the 1 hour offset was now a random offset (10:35 pm might be 11:53 am for example). I then tried deleting the SNL recording and adding it back, this got rid of the bug! I tried deleting and adding back another recording and that worked as well. It would be interesting to know if this works on older versions.