Related Clues:

• TV ad, e.g.
• 'Coming up next' ad
• Many an ad
• ''Coming soon'' announcement
• Rolling digs
• It might have a 'wide load' sign
• Commercial for a TV show
• Early screening
• Detective, often
• Ad of a sort
• Free sample, say
• Ad for an upcoming show
• Film ad, e.g.
• Program preview
• Publicity device, for short