In 2011, the "Scene" was transitioning from standard definition (SD) to high definition (HD). A file like this was the "daily bread" of the internet—released within hours of the TV airing, optimized for speed over absolute archival quality. Because the group was active during this era, this file is essentially a time capsule of how digital media was consumed over a decade ago.
The string -XTM- 2 .E01.111017.HDTV.XviD-WS.avi follows the standard format for a pirated television episode file. Based on the metadata: : Likely refers to the South Korean television channel
To understand XviD, you must understand DivX (not to be confused with the streaming device). DivX was a proprietary commercial codec. A reverse-engineering effort created XviD (DivX spelled backward). XviD was free, open-source, and rapidly became the king of torrents and scene releases between 2004 and 2012.