The Apple Keynotes podcast offers video of the company's most important announcements, including presentations by Apple CEO Tim Cook.
http://www.apple.com/
Apple WWDC 2016 Keynote Address (1080p)
See Apple CEO Tim Cook and team present previews of iOS 10, macOS Sierra, watchOS 3, new Apple TV Siri capabilities and single sign-on as well as the new Swift Playgrounds app.