: YouTube remains the most widely used platform (roughly 90% of teens), followed by TikTok , Snapchat , and Instagram .
: Approximately 77% of teens watch online videos daily. Most engagement occurs on smartphones, with over 80% of teens exceeding two hours of screen-based entertainment on weekends.
: The era of a "unified cultural moment" (e.g., dedicated teen TV channels like MTV or Disney Channel) has largely been replaced by hyper-niche communities and general-audience franchises. Popular Content Categories Media Use by Tweens and Teens - Common Sense Media