This one will be harder without going straight to the Bible. Of coarse we talked about Jan Huss in the other thread.
I also think a false prophet is totally false and can not make a true prophecy and vise versa, a good prophet will not make a false prophecy. Because prophecy come directly from God.
I also don't think that there are many of any prophets in the earth today. Any that are around arent famous or popular so ya wont find them on tv, radio, or YouTube.