Related Clues:
- Sitcom interrupters
- Pop-ups, often
- They're produced with built-in plugs
- Super Bowl highlights, arguably
- Commercial bits
- Sellers' notices
- Super Bowl revenue generators
- Sponsor's TV spots
- Pop-up blockers block them
- Print __
- Campaign fliers
- Charge for sponsors
- 'Net pop-ups
- YouTube video lead-ins
- Campaign purchases