About Knowitall “Smart is fun with Knowitall.org!” Knowitall features a wide assortment of over 8,600 media assets, created by South Carolina ETV with a variety of partners for preK-12. The content has been optimized for tablets and mobile devices for one-to-one learning. On Knowitall, as of May 15, 2020, you will find approximately: ASSETS 4821 videos 1333 audio files 286 photo galleries and 1787 photos 79 interactives 369 documents (62 are Teacher Resources) 225 series (View our Signature Series) 46 collections and the content continues to grow!