You can enable private dns of android on your tv boxes like xiaomi mi box or android emulators like bluestacks with ADB to block ads or something.

# rem to disable private dns
adb shell settings put global private_dns_mode off

# rem to enable private dns with hostname (example with dns.adguard.com)
adb shell settings put global private_dns_mode hostname
adb shell settings put global private_dns_specifier dns.adguard.com