Your new TV is interfering with your Wi-Fi connection.
Your new TV is interfering with your Wi-Fi connection.
It seems interference is the issue. Check if your TV uses an Ethernet connection or Wi-Fi. If you're using Google WiFi, confirm it's a mesh network configuration.
It's been noted before that unshielded TVs or monitors can disrupt 5GHz Wi-Fi signals. I don't recall the exact source, but there was a major announcement a few years ago about devices interfering with routers when placed too near each other. Generally, a TV acts like a large metal surface and electronic components, so keeping it away from Wi-Fi routers is advisable.