Jesus. It's called an OFF button, people.
Jay Rockefeller (D-W.Va.) and Kay Bailey Hutchison (R-Tex.) have introduced a bill that would bring cable and satellite under the FCC's indecency enforcement regime and, as an added bonus, would include violence in the definition of indecency for the first time.
The article is worth looking at, if only to read the break down of what the bill would require if passed.
Like I said. OFF BUTTON. Sheesh.