hes your mom
No. Larry King is not a member of the Church of Jesus Christ of Latter-day Saints (the "Mormon" church). He was raised Jewish but says he has been Agnostic since 1966. His wife, Shawn, is a Mormon.
in your face
Aired August 2, 2008 - 21:00 ET Here's a link to the transcript: http://edition.cnn.com/TRANSCRIPTS/0808/02/lkl.01.html
The first guest on Larry King Live in 1985 was Mario Cuomo, the former governor of state of New York.