Related Clues:

• Not yet known: Abbr
• Uncertain sked letters
• Not yet scheduled, briefly
• 'No info yet,' on a schedule
• Unknown, on a schedule: Abbr
• 'Don't know the details yet' (Abbr.)
• Unfilled, as a time slot: Abbr
• "Still open," on a sched
• Like the teams in some broadcast listings: Abbr
• Placeholding letters on a schedule
• Up in the air, briefly
• 'Hang tight for details' (Abbr.)
• “We don’t know yet,” in brief
• TV listings letters
• Abbreviation on a schedule