docudrama vs videocast

docudrama

noun
  • A type of drama (a film, a television show, or a play) that combines elements of documentary and drama, to some extent showing real events and to some extent using actors performing recreations of documented events. 

videocast

noun
  • A vodcast. 

verb
  • To vodcast. 

How often have the words docudrama and videocast occurred in a corpus of books? (source: Google Ngram Viewer )