Learn Italian: Coloro che guardano troppa televisione sono più influenzabili che consapevoli. - Those who watch too much television are more easily influenced than aware.

Both mean "those who," but coloro che is more formal and elevated. You will often see it in writing, journalism, or formal speeches, whereas quelli che is the standard, everyday way to express this in spoken Italian. Also, coloro is invariable for gender, whereas quelli becomes quelle if referring exclusively to women.

Why is "than" translated as che here instead of di in più influenzabili che consapevoli?

When you are comparing two adjectives or qualities that describe the exact same subject, Italian uses più... che.... You generally use più... di... when you are comparing two different subjects (for example, if Marco is more easily influenced than Luca).

Why does the sentence use troppa instead of the standard troppo?

Here, "too much" is describing a noun (televisione, which is feminine), so it acts as an adjective and must agree in gender and number. If "too much" were describing a verb instead (acting as an adverb, like in guardano troppo, "they watch too much"), it would stay locked as troppo.

How is the word influenzabili formed?