A few words to know:
Media- The means of transferring information, and the information transferred.
Text- The face-value or surface level of a form of media. (What we actually read or actually see.)
Subtext- The deeper or underlying meaning of a form of media.
Utopia- Best possible scenario
Dystopia- Worst possible scenario
PRACTICE:
Watch this video. What is text? What is the subtext?
Text- Michael Jordan and Larry bird competing for a Big Mac meal by taking incredible shots.
Subtext- These famous athletes love McDonald's--OR--A Big Mac meal is worth competing for--OR--If you eat at McDonald's, you will be a great athlete.