Latest Android TV 15 user agents:

User Agent Browser Device
Mozilla/5.0 (Linux; Android 15; SM-S918U1 Build/AP3A.240905.015.A2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/140.0.7339.51 Mobile Safari/537.36 GoogleTV/096214youtube.com/tv# Chrome Webview 140 GoogleTV
Mozilla/5.0 (Linux; Android 15; P1 Build/AP4A.250105.002; 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 15; AndroidTV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.101 Safari/537.36 Chrome 75 Unknown
Mozilla/5.0 (Linux; Android 15; Androidtv Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.62 Safari/537.36 AdsVideoApp/1.0 Chrome Webview 93 Unknown