Weve all heard the Emergency Alert System tones being tested at some point while channel surfing late at night. But when those tones — or sounds that resemble them — are misused for non-sanctioned purposes, the FCC understandably gets very upset. Turner Broadcasting System (TBS as its known to cable viewers) is the latest subject of the commissions ire. After receiving complaints about a Conan ad that apparently simulated EAS sounds to grab viewer attention, the FCC set out to investigate.