Go to OpenSubtitles and search for "Prison Break Season 1". Use the filter panel:
Look for uploads with high download counts and comments like "Perfect sync for YIFY 720p". prison break season 1 subtitles yify portable
Note: This is a famous issue. Many YIFY rips of Prison Break S01E07 use a different source (WEB-DL vs Blu-ray) for the first 4 minutes. Fix: Download the episode-specific subtitle titled "Prison.Break.S01E07.Riot.Proper.YIFY.srt". Do not use a season-pack generic file. Go to OpenSubtitles and search for "Prison Break Season 1"
Even with YIFY subtitles, you might find the text is slightly off-sync. This is common in Prison Break because the dialogue is fast-paced. Look for uploads with high download counts and
The "H" and "G" Keys in VLC:
The keyword "portable" suggests you might be watching on a phone, tablet, or a laptop without a steady internet connection. Here is how to load external .srt files on portable setups: