Most subtitles are timed for the DVD Rip or the NBC broadcast versions . How to Use External Subtitles Download the .srt file for the specific episode.
The original DVD releases include English Closed Captions (CC), though you may need a player that supports CC decoding. Earth 2 (1994) subtitles
Look for .srt files; they are the most compatible with modern media players. Most subtitles are timed for the DVD Rip