Latest Android TV 9 user agents:

User Agent Browser Device
Mozilla/5.0 (Linux; U; Android 9; SMART TV Build/PPR2.180905.006.A1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/66.0.3359.158 Safari/537.36 OPR/56.1.2254.57583 Opera 56 Unknown
Mozilla/5.0 (Linux; U; Android 9.0; en-US; SHIELD Android TV Build/LMY47D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/10.5.2.582 U3/0.8.0 Mobile Safari/534.30 UC Browser 10 SHIELD Android TV
Mozilla/5.0 (Linux; arm_64; Android 9; SHIELD Android TV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 YaBrowser/20.11.4.121.00 SA/3 Mobile Safari/537.36 Yandex Browser 20 SHIELD Android TV
Mozilla/5.0 (Linux; arm; Android 9; BRAVIA 4K UR3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.128 YaBrowser/21.3.1.128.00 SA/3 Mobile Safari/537.36 Yandex Browser 21 Bravia 4K UR3
Mozilla/5.0 (Linux; Android 9; YASIN 4K Android TV Build/PTO6.221014.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/138.0.7204.169 Mobile Safari/537.36 Chrome Webview 138 4K Smart TV
Mozilla/5.0 (Linux; Android 9; YASIN 4K Android TV Build/PTO6.221014.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/126.0.6478.134 YaBrowser/24.1.2.87 (lite) TV Safari/537.36 Yandex Browser Lite 24 4K Smart TV
Mozilla/5.0 (Linux; Android 9; YASIN 2K Android TV Build/PTO6.220707.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/81.0.4044.111 YaBrowser/24.1.2.87 (lite) TV Safari/537.36 Yandex Browser Lite 24 2K Smart TV
Mozilla/5.0 (Linux; Android 9; YASIN 2K Android TV Build/PTO6.220707.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/138.0.7204.157 Mobile Safari/537.36 Chrome Webview 138 2K Smart TV
Mozilla/5.0 (Linux; Android 9; YASIN 2K Android TV Build/PTO6.220120.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/138.0.7204.179 Mobile Safari/537.36 Chrome Webview 138 2K Smart TV
Mozilla/5.0 (Linux; Android 9; WALTON Android TV Build/PTO2.220518.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/135.0.7049.100 Mobile Safari/537.36 Chrome Webview 135 Android TV
Mozilla/5.0 (Linux; Android 9; WALTON Android TV Build/PTO2.220518.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.60 Mobile Safari/537.36 Chrome Webview 114 Android TV
Mozilla/5.0 (Linux; Android 9; WALTON Android TV Build/PTO2.220518.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.58 Mobile Safari/537.36 Vinebre Chrome Webview 111 Android TV
Mozilla/5.0 (Linux; Android 9; WALTON Android TV Build/PTO2.220518.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.116 Mobile Safari/537.36 Vinebre Chrome Webview 111 Android TV
Mozilla/5.0 (Linux; Android 9; VESTA_SMART_TV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.185 Safari/537.36 Chrome 86 SmartTV
Mozilla/5.0 (Linux; Android 9; Smart_TV_BQ) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.101 Safari/537.36 Chrome 87 Unknown
Mozilla/5.0 (Linux; Android 9; SMART_TV Build/PPR1.180610.011) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.109 Safari/537.36 Chrome 65 Unknown
Mozilla/5.0 (Linux; Android 9; SmartTV Build/PPR2.180905.006.A1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/66.0.3359.158 Safari/537.36 Chrome Webview 66 Unknown
Mozilla/5.0 (Linux; Android 9; SMART TV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.104 Safari/537.36 OPR/67.0.3494.62745 Opera 67 Unknown
Mozilla/5.0 (Linux; Android 9; SHIELD Android TV) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 Chrome Webview 70 SHIELD Android TV
Mozilla/5.0 (Linux; Android 9; SHIELD Android TV) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/11.2 Chrome/75.0.3770.143 Mobile Safari/537.36 Samsung Browser 11 SHIELD Android TV