请问TED演讲中一句英语的意思.

请问TED演讲中一句英语的意思.这是TED演讲中的一段,So I was on a national television prime-time show.And believe it or not.That was the first show on Chinese television that allowed its hosts to speak out of their own minds without reading an approved script.请问这里that allowed its hosts to speak out of their own minds without reading an approved script.特别是其中to speak out of their own 因为out of one’s mind是精神错乱的意思.