Related Clues:

• Run
• It's just one thing after another
• Set
• In installments
• Kind of number
• 39-Across, e.g.
• It's one thing after another
• Soap, e.g.
• One thing after another
• Best of seven, e.g.
• It's a long story
• Best of seven, say
• Type of number
• 'Soap,' for one
• Ongoing story