The family of celebrity zookeeper and TV show host Jack Hanna said he's been diagnosed with dementia and will retire from public life.

Passage: David Letterman The “Late Show” host has announced his retirement from the late-night spotlight. After being passed over as Johnny Carson’s successor on “The Ton...

Remembering David Brenner Legendary comedian David Brenner has died at the age of 78. He appeared frequently on the Johnny Carson and his trademark,"Did you ever notice?"...