Related Clues:

• It might be on one's radar
• Commercial on the tube
• On-screen plane?
• Radar echo
• Radar sign
• It's barely noticeable
• Brief upturn
• Control tower image
• Jet, to an air traffic controller
• Inside pitch?
• Radar-screen sound
• Sound on classic Pong
• Anomalous rise
• Inconsequential interruption
• Show stopper