We're getting a lot of questions about different people being eligible for nominations (for example: the judges from AI, Fern from TAR2, etc).Rather than asking the questions, my suggestion would be to go ahead and make the nomination, and let the committee decide about eligibility. That's what the committee is for.
Disclaimer: this doesn't mean that you should make obviously wrong nominations, for example "Simon Cowell-- best sweetheart (female)" or "Survivor:Thailand - Best Overall Show"... oh... wait... that last one is an opinion