259799
Background In 1977 , the BBC tasked producer Bill Sellars with the creation of a television series from Herriot 's first two novels , If Only They Could Talk and It Should n't Happen to a Vet , using the title of the 1975 film adaptation All Creatures Great and Small .
 BBC, Bill Sellars, Herriot
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 BBC, Bill Sellars, Herriot