I just wanna know, like is it weekly, daily?
There are more than 700 episodes out there, and the app is scheduled to update available episodes weekly, so every week your little viewer (or you, if you happen to be a Pokemon fan) can dial in and check out some brand-new content.The movies are in rotation as well (Pokemon the Movie will be streaming during the second half of this week), and there are even new animated shorts to see, including the upcoming Meloetta's Moonlight Serenade.
According to this source it updates with new episodes every week.
