23100
He was best known for a series of hit songs in the 1960 s and 1970 s , and for hosting " The Glen Campbell Goodtime Hour " on CBS television from 1969 until 1972 .
 CBS
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 CBS