Spread Certificate · No. HIS-01466
This certifies how far it spread
The Seinfeld finale
Castle Rock Entertainment (producer); NBC (original broadcaster) ·May 1998 ·seeded onTVthenPressOpen web
Spread Score
51
Notable
Verified independently
Verified
76.3M impressions
US finale average audience; Nielsen estimate, not cumulative reach
Los Angeles Times
Verified
$1.7M
Reported average national 30-second ad price, AP estimate
Associated Press via CBS News
Verified
same day
Seed to peak proxy, May 14 ’98 to May 14 ’98
Verified
3 platforms
Started on TV
Claimed, not audited
Claimed
108M impressions
NBC total-viewer estimate; overlaps Nielsen audience, unaudited
Per Los Angeles Times
Claimed
20
Advertisers buying finale network time; NBC claim, lower bound
Per Associated Press via CBS News