NHL GameCenter LIVE™ is a subscription service offering streaming video of live out-of-market games, on-demand replays and more across multiple devices. For a single price, you can watch games on your personal computer, smartphones and a variety of Internet-connected devices.
To use the National Hockey League app you must be signed in to Xbox Live. In order to view games you must also have an active NHL GameCenter LIVE subscription. To purchase a subscription go to gamecenterlive.nhl.com.
Once you have purchased the subscription you can sign into your account by going to the main menu of the app and selecting 'Sign In'.
General:
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Are all games available to watch live? Due to local and national blackout rules and regulations, game broadcasts that are available to watch on television in your local market and nationally televised games are not available to watch live or within 48 hours of game completion in NHL GameCenter LIVE™.
To determine the teams in your local market which are, therefore, not available to watch live, please check your zip code. These games are broadcast on a regional sports network in your area.
National broadcasts -- regardless of whether they are available with your cable or satellite package -- are not available to watch in NHL GameCenter LIVE™ until 48 hours after the game is complete.
For international customers, blackout restrictions may apply to games that appear on an NHL partner network in your viewing area. International partners include: Nelonen, PRAGO SPORT, PREMIER Sports, Setanta 1, Setanta Ireland and VIASAT. Please check your local listings for broadcasts on these networks.

I am unable to watch a game that I believe I should be able to. If you are blacked out of a game and believe you should have access, please contact NHL GameCenter LIVE™ customer support at 866-210-6349 (U.S.) or +1-407-708-1356 (Outside of the U.S.) between the hours of 9am to 2am ET. Add # for Canada
Please have your IP (Internet Protocol) address on hand so a customer support representative can best help you. To look up your IP address, check http://www.whatismyip.com or a similar website.
You may also check your zip code from which you are watching the game to see if either of the two teams playing is unavailable in your local viewing area. Remember, all nationally televised games are not available to watch live in NHL GameCenter LIVE™.

My videos take a long time to start and/or are not playing smoothly. NHL GameCenter LIVE™'s adaptive feature will select the appropriate video streaming bitrate based on your network's bandwidth so that you may enjoy the best video quality available. If you are having issues with choppy video you may have low internet bandwidth.

The live game scores and stats are significantly delayed and do not match the video. NHL GameCenter LIVE™ uses internet based connections to display live game events. From time to time, your internet connection may be interrupted causing the notifications and other updates to be delayed.

How much Internet data will I use watching NHL GameCenter LIVE™? Data usage will vary depending on a variety of factors, including the stream quality at which a user is watching a game, the total number of games watched and the device a game is watched on.
For games on a connected device, stream quality will automatically adjust to the highest quality that a user's internet connection can support. There are five levels of stream quality for NHL GameCenter LIVE™ and each level will use approximately the following number of Gigabytes per game*. 400 kbps – 0.5 GB/Game 800 kbps – 1.0 GB/Game 1,600 kbps – 2.0 GB/Game 3,000 kbps – 4.0 GB/Game 4,500 kbps – 6.0 GB/Game
*This approximation is exclusive to NHL GameCenter LIVE™ usage and does not factor in any other internet usage during the time the game is watched. Watching more than one game at a time (online and/or in combination with other devices) in the multi-screen view will increase the amount of data used. NHL GameCenter LIVE™ is not responsible for any data overages or additional fees incurred by exceeding your broadband plan.
Your use of the NHL® app is governed by the NHL.com Terms of Service and Privacy Policy. Please visit nhl.com/termsofservice and nhl.com/privacy for more information.
If you are blacked out of a game and believe you should have access, please contact NHL GameCenter LIVE™ customer support at 866-210-6349 (U.S.) or +1-407-708-1356 (Outside of the U.S.) between the hours of 9am to 2am ET. Add # for Canada