PS3 untrusted? I never had any concerns with mine. But that's me. I used it to stream media from other devices. It was great until it died with a DVD in it. Not fun getting it put. I would totally put a web enabled TV on guest though.
I fail to see how having different SSIDs would separate the networks, seeing as they both use the same router and interface. Wouldn't it be better to just enable AP isolation?
My Asus router allows to turn AP isolation on separately for the 2.4GHz and the 5GHz SSID's, but afaik if you don't turn it on, devices on one SSID can access devices on the other.
Some routers allow to create separate networks with different SSIDs, some just share the same network. I assume this discussion is more about home networking so I guess I shouldn't complicate it by getting into business equipment that likely has more capabilities than the average home equipment.
I think I may use a separate router, as someone suggested above. Takes some of the uncertainties highlighted above right out of the equation. BTW would it be necessary to be physically near my network in order to hack it, or is it also vulnerable to remote hacking?
What specifically? To hack the Wi-Fi they would have to be in range of the Wi-Fi network. If they have a booster their range is greater than yours. If you mean the wired network, that can be hacked from anywhere on earth if you are plugged into the internet.