An increasing number of TV shows are using product placements as a new revenue stream. Nielsen reports that NBC is setting a high pace with some of its programs - "America's Got Talent" integrated brand and product placement 59 times last month; and drama "Friday Night Lights" had 47. The next highest number of placements was 22. There were 5 NBC shows in the Top 10 user of product placement.
Source - NBC Shows Continue to Set the Pace for Brand Integrations, Ad Age