Related Clues:

• 'When we know, you'll know': Abbr
• "When we know, you'll know": Abbr
• Still unscheduled: Abbr
• As yet unscheduled: Abbr
• Abbr. for an unfilled spot
• Info. to come
• Initials of uncertainty
• Unclear sched. letters
• Schedule placeholder: Abbr
• Not yet determined, on a sched
• Time slot abbr
• Abbr. meaning 'We'll fill this slot in later'
• Letters on an incomplete syllabus
• Abbr. for an open slot
• Abbr. in an unfilled TV slot