Your boss demands more respect that a friend would. Using a word like sir instead of common slang terms show respect and honor to someone.
Answer:
They are techniques used to build logical support for an argument. They make nonfiction writing more entertaining. They are rhetorical devices used for persuasive effect
Depending on the research you find, it could vary. Explain to them that while watching TV is not an "evil" thing, it can have some affects in the youth. Tell them how it can affect the behavior with friends, family and other people whom are around them. In addition you could even as far as mentioning academic success and failure.