Related Clues:

• Late-night host
• He follows the news
• Late-night name
• Jack of 50's-60's TV
• Carson successor
• TV host who does 'Headlines'
• Letterman rival
• Carson's predecessor at NBC
• See 19-Across
• Big name in comedy
• Ambient music pioneer
• Taking the place (of)
• Jay who has Monday night 'Headlines'
• Carson's successor
• 'I Kid You Not' autobiographer