diff --git a/README.md b/README.md
index 01f975958..bc79c7e45 100644
--- a/README.md
+++ b/README.md
@@ -684,7 +684,7 @@ Note that none of the aforementioned meta fields are guaranteed to be present si
 
 Formats for which the value is not known are excluded unless you put a question mark (`?`) after the operator. You can combine format filters, so `-f "[height <=? 720][tbr>500]"` selects up to 720p videos (or videos where the height is not known) with a bitrate of at least 500 KBit/s.
 
-You can merge the video and audio of two formats into a single file using `-f <video-format>+<audio-format>` (requires ffmpeg or avconv installed), for example `-f bestvideo+bestaudio` will download the best video-only format, the best audio-only format and mux them together with ffmpeg/avconv.
+You can merge the video and audio of two formats into a single file using `-f <video-format>+<audio-format>` (requires ffmpeg or avconv installed), for example `-f bestvideo+bestaudio` will download the best video-only format, the best audio-only format and mux them together with ffmpeg/avconv. If you want to merge video and audio formats with precedence, group the video and audio together with `+` and then use `/`, for example `-f 136+140/mp4+m4a/bestvideo+bestaudio`.
 
 Format selectors can also be grouped using parentheses, for example if you want to download the best mp4 and webm formats with a height lower than 480 you can use `-f '(mp4,webm)[height<480]'`.
 
@@ -706,6 +706,9 @@ $ youtube-dl -f 'bestvideo[height<=480]+bestaudio/best[height<=480]'
 # Download best video only format but no bigger than 50 MB
 $ youtube-dl -f 'best[filesize<50M]'
 
+# Download preferred formats, with merge and precedence
+$ youtube-dl -f '136+140/mp4+m4a/bestvideo+bestaudio'
+
 # Download best format available via direct link over HTTP/HTTPS protocol
 $ youtube-dl -f '(bestvideo+bestaudio/best)[protocol^=http]'