Pi-hole. Works like a charm. Also does the same for every device in your house. Moreover, if you don't mind spending an additional $5 a month, set up your Pi-hole in a Digital Ocean droplet and you can blocks ads everywhere YOU happen to be, even on your mobile device.

I run one and it works very well, but I fear the rise of DoH and devices just bypassing your network's DNS settings to query the manufacturer's DNS servers. I think Google devices do this.

A sad world we live in when you have to fight the devices you paid for.

Running every dns request to a random DO droplet sounds like it would cause latency. Is there not some public DNS option that blocks ads?

There is very little latency, actually. If it just for you and/or your family, there is zero appreciable difference.

Does the Nvidia Shield not utilize ACR like the smart TVs? I hear they're great but they run Android so I'm skeptical.

I'm not sure currently. If not, it wouldn't surprise me if its added.