Related Clues:
- Website pop-ups
- Promoted tweets, essentially
- They don't interrupt HBO or Netflix
- You might upgrade to Spotify Premium to avoid them
- Things blocked by some browser extensions
- Web pop-ups
- They pay for programs
- Revenue sources, for short
- Traditional Super Bowl debuts
- Back pages, often
- What a pitcher is full of?
- Trailers, e.g
- Super Bowl highlights, to many
- Staples of many websites
- YouTube video preceders