82866
Written by the series ' script editor at the time , Douglas Adams , it was intended as the final serial of the 1979 – 80 season ( season 17 ) but was never completed , owing to strike action at the BBC during filming .
 Douglas Adams, BBC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Douglas Adams, BBC