Before the change, if you wanted to play, say, The West Wing, which you probably do because it's amazing, you'd go to Netflix, search for "the west wing," and find that, oh no, it's not available for streaming, but you can rent it on DVD. Easy! Now, if you did the same thing, Netflix would tell you "this title is not available." Then you can go over to Qwikster and search, if you remember that you pay for two separate services. Oh, also, ratings and reviews (which are pretty important, especially for Netflix's recommendation algorithms) will also be entirely separate, even when the exact same title is available both for streaming and on disc.