Disseminated
Verb
The Source Sentence and (page Number): Text Connect Page. 41
Third, popular culture is increasingly disseminated by the mass media…
Context Clues: In the sentence there were not any examples, Antonyms, or synonyms. Using my logic that Disseminated is a word the media spreads information television, film, and radio too.
Definition: scatter about, spread.
Your Original Sentence: The television emergency broadcast system disseminated at
2 p.m. this afternoon.

http://www.merriam-webster.com/dictionary/Disseminated