Netflix, Inc., the world online movie rental service, pioneered unlimited DVD rentals for one, low monthly fee. The company announced it is now giving most of its more than seven million subscribers the added benefit of unlimited streaming of movies and TV episodes on their PCs.

All Netflix subscribers on unlimited rental plans, which start at low rate, will be able to stream as many movies and TV episodes as they want on their PCs, choosing from a library of over 6,000 familiar movies and TV episodes.

Since introducing PC-based movie watching last year, the company had taken a "metered" approach to the feature, offering, in essence, an hour per month of instant watching on a PC for every dollar of a subscriber's monthly subscription plan.

Now, subscribers on unlimited plans get unlimited DVD rental, with access to a library of over 90,000 DVD titles -- plus, for no additional cost, the ability to stream as many movies and TV episodes as they want from the smaller instant watching library, unconstrained by any hourly limits.

Since introducing the streaming feature a year ago, Netflix has continued to add titles to the library. In the first year, the choices most popular with subscribers have included hit TV series "Heroes," "The Office" and "30 Rock," as well as feature films "The Sum of All Fears" and "The Italian Job" and Academy Award-winners "Pan's Labyrinth" and "Letters from Iwo Jima."