The .rar extension indicates a compressed folder. Once extracted, it typically contains video files (likely .mkv or .mp4 ). Resolution: 720p (High Definition, 1280x720 pixels).
S01 denotes the complete first season, which consists of six episodes. About the Show Savage.River.S01.720p.HDTV.rar
HDTV suggests the content was recorded from a high-definition television broadcast. Savage.River.S01.720p.HDTV.rar