Compliance is non-negotiable. For the US market, FCC certification is required, while the EU market demands CE, RoHS, and ERP (Energy-related Products) ratings. Since these are Android-based, verify if the OS is Official Google-certified Android TV (ATV) or an AOSP (Android Open Source Project) version; Google-certified versions are essential for accessing the Google Play Store and Netflix/YouTube in 4K. Furthermore, ensure the TV supports the correct digital broadcasting standard for your region, such as DVB-T2 (Europe/Asia), ATSC (North America), or ISDB-T (South America).