Possible Clues:

• 7UP, in old ads (with ''The'')
• Coke alternative, in old ads
• 7-Up, with 'the'
• Beverage nickname, with 'the'
• Old 7UP nickname, with 'the'
• 7-Up, in old ads
• The ___ (old 7 Up nickname)
• Beverage nickname introduced in 1967
• 7UP's tagline, with 'the'
• 7Up, in old ads, with 'the'