Although the stations are available on TV free with an antenna, NBC is limiting online streaming to cable and satellite TV subscribers.
Viewers will need to sign in with their provider's account information, similar to ABC's approach. CBS doesn't require a cable or satellite subscription but charges $6 a month for its CBS All Access service.
The 10 NBC markets cover New York, Los Angeles, Chicago, Philadelphia, San Francisco, Washington and other regions where NBC owns the local station. NBC expects to add affiliates — stations that run NBC programs but are owned by others — throughout the year.
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