Related Clues:

• TV listing abbr
• As yet undecided, on a sched
• 'Ask me later,' initially
• “We don’t know yet,” briefly
• Schedule placeholder, for short
• TV itinerary abbr
• Scheduling letters
• 'Don't know yet' letters
• Still undetermined, on a sched
• 'Check back later' (Abbr.)
• Undecided, on a TV sched
• Schedule slot abbr
• 'We'll let you know,' on skeds
• "We'll let you know," on skeds
• Indicator of an unsettled slot