79137
After nine years on the air , NBC and Jerry Seinfeld announced on December 25 , 1997 , that the series would end production the following spring in 1998 .
 NBC, Jerry Seinfeld
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 NBC, Jerry Seinfeld