During the 2018-2019 broadcast season, some HD feeds still utilized interlaced scanning. If a user recorded Young Sheldon S02E03 via an over-the-air antenna, the file might appear "jagged" during motion sequences. FFmpeg is often used to apply a deinterlacing filter.
ffmpeg -i "Young.Sheldon.S02E03.mkv" -map 0:v:0 -map 0:a:0 -c copy "YS_S02E03_clean.mkv" young sheldon s02e03 ffmpeg