I've yet to see Samsung publish such a list and the rep here seems to be USA only.

1. Unlikely. You'll have to find folk that did this or try it yourself.

2. I'm going with no. It's a TV and not a PC.

3. Did you try them?

There is something else to consider. One member found a keyboard did work but not in all "apps" so not only do you have to test the keyboard but the apps that are out that day. The apps may update and the keyboard stops working.

--> Can I ask this? Are you trying to replace a PC with a TV?