Any info needed to watch or live stream The Open Championship (British Open) in its entirety is included in this guide.
The British Open airs on the Golf Channel and NBC. The Golf Channel will be airing the first two rounds in full. The 3rd and 4th rounds will be split between the Golf Channel and NBC, with the Golf Channel airing the first half of the action and NBC broadcasting the 2nd half of the final two rounds.
Here is a full list of all the cable, internet TV and satellite providers that include both of these two channels:
Cable TV - Cox, Spectrum, U-Verse, Verizon Fios, Xfinity
Satellite TV - DirecTV, Dish Network
Internet TV - AT&T TV Now, Hulu Live TV, Sling TV, YouTubeTV, FuboTV
Golf Channel Live. If you have a cable provider that includes the Golf Channel in your package, you can use your login credentials to sign in to this link and watch their broadcast live, from either your smartphone, tablet or computer.
And here's the Apple Golf Channel app.
As well as the Google Play Golf Channel app.
NBC Live. This link will give you access to all NBC shows airing live, as well as access to Bravo, CNBC, E!, MSNBC, Oxygen, SYFY and USA Network. Just scroll down to the guide at the bottom after you have logged in.
The NBC app. Provides links to all the streaming devices you could possibly have to watch NBC live, from Apple to Android, Roku, Amazon, Xbox or various smart TVs.