Latest Android TV 8 user agents:

User Agent Browser Device
Mozilla/5.0 (Linux; Android 8.0.0; BRAVIA 2015 Build/OPR2.170623.027.S16; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/138.0.7204.179 Mobile Safari/537.36 Chrome Webview 138 Bravia 2015
Mozilla/5.0 (Linux; U; Android 8.0.0; en-US; BRAVIA 4K GB Build/OPR2.170623.027.S30) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 UCBrowser/12.14.0.1221 Mobile Safari/537.36 UC Browser 12 Bravia 4K GB
Mozilla/5.0 (Linux; Android 8.1.0; P1 Build/OPM6.171019.030.B1; wv-atv) Google/0.4.5 AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 Chrome Webview 83 Unknown
Mozilla/5.0 (Linux; Android 8.0; Smart TV Build/OPR5.170623.014) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.89 Safari/537.36 Chrome 50 Unknown
Mozilla/5.0 (Linux; Android 8.0; BRAVIA 4K GB Build/OPR2.170623.027.S34) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.89 Mobile Safari/537.36 Chrome Mobile 50 Bravia 4K GB
Mozilla/5.0 (Linux; Android 8.0; BRAVIA 4K GB ATV3 Build/OPR2.170623.027.S32) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.89 Mobile Safari/537.36 Chrome Mobile 50 Bravia 4K GB ATV3
Mozilla/5.0 (Linux; Android 8.0; BRAVIA 4K GB ATV3 Build/OPR2.170623.027.S25) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.132 Mobile Safari/537.36 Chrome Mobile 57 Bravia 4K GB ATV3
Mozilla/5.0 (Linux; Android 8.0; BRAVIA 2K GB ATV3 Build/OPR2.170623.027.S30) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.95 Mobile Safari/537.36 Chrome Mobile 48 Bravia 2K GB ATV3
Mozilla/5.0 (Linux; Android 8.0; BRAVIA 2K GB ATV3 Build/OPR2.170623.027.S25) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.91 Safari/537.36 OPR/42.8.2246.118317 Opera 42 Bravia 2K GB ATV3
Mozilla/5.0 (Linux; Android 8.0; BRAVIA 2K GB ATV3 Build/OPR2.170623.027.S25) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.95 Mobile Safari/537.36 Chrome Mobile 48 Bravia 2K GB ATV3
Mozilla/5.0 (Linux; Android 8.0; BRAVIA 2015 Build/OPR2.170623.027.S16) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.89 Mobile Safari/537.36 Chrome Mobile 50 Bravia 2015
Mozilla/5.0 (Linux; Android 8.0.0; Smart TV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.166 Safari/537.36 OPR/65.2.3381.61420 Opera 65 Unknown
Mozilla/5.0 (Linux; Android 8.0.0; SMART TV(UHD)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.105 Safari/537.36 Chrome 72 Unknown
Mozilla/5.0 (Linux; Android 8.0.0; Smart TV Build/OPR5.170623.014) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36 OPR/49.2.2361.134358 Opera 49 Unknown
Mozilla/5.0 (Linux; Android 8.0.0; SHIELD Android TV Build/OPR6.170623.010; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.125 Mobile Safari/537.36 Chrome Webview 58 SHIELD Android TV
Mozilla/5.0 (Linux; Android 8.0.0; P1 Build/OTT1.201231.001; wv-atv) Google/0.4.3 AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 Chrome Webview 83 Unknown
Mozilla/5.0 (Linux; Android 8.0.0; P1 Build/OTT1.180130.001; wv-atv) Google/0.4.7-dev AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 Chrome Webview 83 Unknown
Mozilla/5.0 (Linux; Android 8.0.0; P1 Build/OPR6.170623.013; wv-atv) Google/0.4.7-dev AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 Chrome Webview 83 Unknown
Mozilla/5.0 (Linux; Android 8.0.0; P1 Build/OPR5.170623.014; wv-atv) Google/0.4.7-dev AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 Chrome Webview 83 Unknown
Mozilla/5.0 (Linux; Android 8.0.0; P1 Build/OPR5.170623.014; wv-atv) Google/0.4.3 AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 Chrome Webview 83 Unknown