Here is the analysis of THE VOLTRON SPOILER from my experience as someone that works in television and has seen those type of “text burn in” on video countless times before
1) (upper left) obviously happens at 13 min 55 sec into the episode.
2) (lower left) the episode is final, because the word LOCKED mean : it’s locked, it’s final, we’re not touching it.
3) But they touched it again, recently, because it’s written “updated april 18th”.
4) this looks like a voice booth, yes, but also the file look like a file we send either to a musician or to the sound mixing studio (h264 is a type of video file that is used by both, we produce this video file format every single day to send to musicians, sound studios, producers and networks for approbation, etc.)
My bet is on the sound studio.
5) Sadly, the episode number that should be written before the word LOCKED is hidden by the mike.
6) (upper right) the number 162_tk1 probably means : 162nd shot in the episode, take 1. Don’t take my word on this one because I only worked with animation shots once in my life, I usually work with normal tv shows.
Aaaaand that’s all I have.
ruinedchildhood