Once you have the .srt file, you need to load it into your video player. The method depends on how you are watching:

Once you download the .srt or .zip file from SubDL:

SubDL is a popular website for downloading subtitles for various TV shows and movies. For Breaking Bad Season 1, SubDL offers subtitles in multiple languages, including English, Spanish, French, German, Italian, and more.

If the subtitles are slightly out of sync, VLC is the best tool.