The milestone announced Tuesday is the latest sign that the Internet video service may be starting to reduce the amount of time its 26.5 million streaming subscribers spend watching advertising-supported entertainment bundled in more expensive cable-television packages. Netflix Inc. sells the service for $8 per month.
The rising usage of Netflix also indicates that the company's recent efforts to expand its Internet video library are paying off.
The 1 billion hours of collective viewing during June works out to a monthly average of 38 hours per streaming subscriber. That's up from an estimated 28 hours per customer in December.