Rich people always have portraits of themselves by Andy Warhol hanging in their houses.
People on television always have a rich relative who will die and leave them money when they are in a jam. Or they will have some friend/relative who is loaded to loan them thousands of dollars just by writing a check.
All tv parents are ex-hippies even though they were two years old during the Age of Aquarius once you do the math.
All kids age 5 years between the season finale and the season premiere.
Everyone has plenty of money, expensive clothes, a great car but no visible evidence of having a job.
On television, everyone's bosses let them get by with goofing off, talking about their problems, and taking off work on the spur of the moment to do personal stuff.
In science fiction there is always one alien race that is the "warrior race" and one that is the snooty "enlightened race" and humans who are regarded as the flotsam of the universe.
In science fiction everyone will wear jumpsuits.