Related Clues:
- Sides of many city buses
- Facebook revenue source
- Spots with jingles
- App interruptions
- Classified postings
- Block between shows
- They may be removed in 'premium' versions
- Super Bowl broadcast fillers
- Reasons for some sportscast split screens
- Video intrusions
- WWW pop-ups
- Short commercials
- They interrupt TV shows
- Things in newspapers and magazines
- Commercials on TV