Possible Clues:

• Before-time link
• "___ Howdy Doody time!"
• "__ a Wonderful Life"
• ''__ a long story''
• "Live from New York, ___ Saturday Night!"
• "___ Beginning to Look a Lot Like Christmas"
• The 'I' in T.G.I.F.
• Oft-mispunctuated possessive
• '___ Always Sunny in Philadelphia'
• "___ Raining Men"