I only see CW.com streaming five eps at a time, with commercials, and Hulu appears to be same way. Don't know about the app.Why bother when people can just watch them on CW.com, Hulu, and the CW app, all of which offer the episodes completely free without any kind of purchase.Amazon sells subscriptions to perpetual (theoretically) streaming rights to episodes and seasons, but for a total of above the blu-ray cost. They should work out a deal where, if one pre-buys the blu-ray season set at a reasonable price, one can stream each episode starting the day after it airs, in perpetuity.
Anyway, just a suggestion to Amazon/WB to help them sell more blus.