Related Clues:

• Alex Trebek, e.g.
• Introducer
• Rap
• Large number
• See 67-Across
• Parasite's home
• Virus's target
• Roast host
• One who rules the roast
• Central computer
• Program listing
• Parasite's place
• Large quantity
• Martin, at the 2001 Oscars
• Anne Robinson, e.g.