YouTube has become the leading video provider on US televisions, surpassing traditional Hollywood studios. The Wall Street Journal reports that this shift is driven by a generation that grew up watching YouTube creators on mobile devices and is now migrating to TV screens. YouTube's success is attributed to its creator-driven content, tailored for family and group viewing, and its app features optimized for the TV viewing experience. This trend signifies a significant change in how Americans consume video content, with YouTube's user-generated content gaining prominence over traditional media.