Make a specific network for these applications which does not have access to the internet. Add your personal media servers to it and give the TV and other untrustworthy devices access to it. You get to access your media without having the devices spy on you and without having them auto-update. You can have several such networks for different purposes, e.g. 'internet of things' and 'media' and 'systems management' to name a few. All this takes is a reasonably capable router - OpenWRT in my case, running in a container on the server-under-the-stairs - and (if you use separate access points which is a must when using a virtual router...) a managed switch which can handle VLANs. For access points I use repurposed WiFi routers running OpenWRT with their routing functionality disabled. I went this route because I live on a farm with several access points spread out over the premises but the same can be achieved with a single WiFi router running OpenWRT or similar, in that case just add a number of interfaces and wireless networks ('media', 'iot', 'ops' etc.) to which you connect our devices.
Make a specific network for these applications which does not have access to the internet. Add your personal media servers to it and give the TV and other untrustworthy devices access to it. You get to access your media without having the devices spy on you and without having them auto-update. You can have several such networks for different purposes, e.g. 'internet of things' and 'media' and 'systems management' to name a few. All this takes is a reasonably capable router - OpenWRT in my case, running in a container on the server-under-the-stairs - and (if you use separate access points which is a must when using a virtual router...) a managed switch which can handle VLANs. For access points I use repurposed WiFi routers running OpenWRT with their routing functionality disabled. I went this route because I live on a farm with several access points spread out over the premises but the same can be achieved with a single WiFi router running OpenWRT or similar, in that case just add a number of interfaces and wireless networks ('media', 'iot', 'ops' etc.) to which you connect our devices.