WPS Push Button connection setup to Sony Android TV | Connect to a wireless network
Check out for Using the WPS (Push Button) feature to connect to a wireless network on your sony android smart tv.
Android TVs that have been updated to Android 8.0 Oreo or later don't support WPS. They won't be able to access the WPS option under Network settings. The WPS function is removed from Android TVs with WPS support in this software version and future updates.