Google has introduced longer, 30-second unskippable ads on the YouTube app for smart TVs, marking a shift in advertising strategy compared to mobile and laptop platforms. This change is part of an initiative to enhance content delivery on larger screens, utilizing Google AI to alternate between different ad formats. YouTube's growth is projected to lead to revenues reaching billions by 2025, with the living room becoming its fastest-growing venue. Viewers on smart TVs are experiencing longer engagement times, making the "Skip Ad" button less common unless they subscribe to YouTube Premium. YouTube is also exploring subscription models, including a budget-friendly “Premium Lite” tier. However, some markets, like Vietnam, have imposed restrictions on ad lengths. Despite this, YouTube remains the leading streaming platform in the U.S., and the trend towards longer ads is expected to continue.