Coverage of Olympics extensive on the web

NEW YORK — Every Olympic event will be streamed live.

To watch online, though, you must be a paying cable or satellite subscriber.

As with past Olympics, NBC is requiring proof of a subscription. If you've already given up on traditional cable or satellite television, you can sign up for an online TV service such as PlayStation Vue or YouTube TV. Otherwise, your video will cut out after a half-hour grace period.

The subscription requirement also applies to coverage on virtual-reality headsets.

More than 1,800 hours of online coverage has begun in the United States. Here's a guide to watching the Olympics online.

Traditional coverage

NBC's over-the-air network will cover popular sports such as figure skating and skiing, some of it live.

For those who can't get to a television, NBC will stream the broadcast at NBCOlympics.com and the NBC Sports app. There, though, you'll need your paid-TV credentials to sign in — even though you can watch the network over the air for free.

The sports network NBCSN will be the main overflow location, carrying events such as the biathlon, bobsled and luge. Coverage on CNBC and USA Network will be limited to curling and ice hockey. The Olympic Channel will have medal ceremonies, news and highlights but not event coverage. Coverage on all four of these cable networks will also be streamed online.

Much of the online coverage will come from the International Olympic Committee's Olympic Broadcasting Services, meaning that the spotlight will be on all athletes, not just Americans. In addition to live events, you can get streams of some training and practice runs. NBC also plans digitalonly shows, including a daily two-hour wrap-up starting at noon ET (2 a.m. the next morning in Pyeongchang).

Some cable companies plan special features. NBC owner Comcast will include online coverage on its TV set-top