Related Clues:

• Not yet posted, on a sked
• Not yet finalized, briefly
• Unknown, on a TV sched
• 'Not available at press time,' briefly
• [We can't find an opener for this slot, what's your band doing on Monday?]
• "I don't know yet," on a schedule
• "Check back later," in a sked
• "We don't know yet," in a TV schedule
• ''Watch this space,'' for short
• Not yet scheduled (Abbr.)
• Radio journalist Shapiro
• Up in the air, as what to air, for short
• Not yet decided, for short
• Abbr. for an unfilled slot
• TV sched. uncertainty