Related Clues:

• Sound track
• TV sound
• Broadcast component
• TV repairman's focus, maybe
• Kind of feed
• AV unit
• Sound on the air
• Part of a TV signal
• TV signal component
• Sound from a broadcast
• The sound of music?
• Telecast component
• Telecast's sound portion
• The 'A' in A/V
• Half of A/V