: Since it's an MKV, the subtitles are often "soft-coded" (hidden inside). In VLC, right-click the video, go to Subtitle > Sub Track , and select your language.

If the screen stays black but you hear sound, the file might be encoded in H.265 (HEVC) .

: If there are multiple language tracks, you can switch them under Audio > Audio Track .

The filename is characteristic of files downloaded from TFPDL, a well-known site for compressed movies and TV shows. In this case, "TBLKLST" likely refers to the TV series The Blacklist .

Standard players like Windows Media Player sometimes struggle with .mkv files or the specific "codecs" (compression math) used by TFPDL. To ensure the video plays smoothly without "missing codec" errors: