They appeal to the emotions. They make false claims. Hair sprays create instant beauty. Soaps remove stains by magic. Secret ingredients make your yellow teeth whiter than white.
Commercials are a basic annoyance.
They interrupt programs too frequently. The dialogue is glib, smug, and unconvincing. The emphasis on toilet paper, laxatives and sweat is vulgar. The commercials lack originality. The same skits are shown again and again.