It means that you choose to view strangers on a television for entertainment, but when it comes to letting these same people in your house... you may not be so keen to do so.
Explanation:
You could be watching the Bachelorette or something related to drama and it's entertaining to watch and laugh about. But that's because your on the outside of the situation. Imagine if you were kneedeep in the drama yourself, it wouldn't be as fun, would it?
