Once a term for disk jockeys who'd squeeze in some tasteless comedy bits between records and commercials. Their success has brought us the Shocking of America - Tabloid TV, Howard Stern non-radio projects, Rush Limbaugh, Matt Drudge... They "push the envelope" without regard to its effects (or truth). Lenny Bruce and Don Imus have used shock as a trojan horse conveying weightier truths than "We'll do anything for a ratings point"; few others can. Don't touch that dial.