Related Clues:

• Top-of-the-hour radio offering
• Information
• Summer fare
• See 9-Across
• Any 'Seinfeld' episode, now
• See 21-Down
• Late-night program
• Post production?
• Summer show, often
• Second coming?
• Kind of flash
• Repeat
• Kind of conference
• It's been shown before
• ''Seinfeld'' episode, e.g.