Someone else in this thread linked to ASCII WWDC [0], which lets you search through all available video transcripts. It's worth noting that some older videos ha

Someone else in this thread linked to ASCII WWDC [0], which lets you search through all available video transcripts. It's worth noting that some older videos have no transcript, and some newer videos says "Awaiting Transcript". Each session includes a link to the video and slides. If you try browsing all videos [1] you can only view as far back as WWDC 2015, I think this is because the searching and filtering capability of these pages is being handled entirely on the client. You can access older WWDC videos by manually editing the year in the URL, although it only seems to work for going as far back as WWDC 2012 [2]. You can still find this content by using the regular developer search [3]. Searching for "grand central dispatch" and selecting the Videos tab shows "Mastering Grand Central Dispatch" [4] as the first result, which I believe is the material you're referencing. Since we're on the subject and you appear to be familiarized with the content: do you have suggestions for WWCD videos worth checking out if you're interested in learning more about macOS? [0] https://asciiwwdc.com/ https://asciiwwdc.com/ [1] https://developer.apple.com/videos/all-videos/ https://developer.apple.com/videos/all-videos/ [2] https://developer.apple.com/videos/wwdc2012/ https://developer.apple.com/videos/wwdc2012/ [3] https://developer.apple.com/search/ https://developer.apple.com/search/ [4] https://developer.apple.com/videos/play/wwdc2011/210/ https://developer.apple.com/videos/play/wwdc2011/210/