31.   About three years ago, the National Institute on Media and the Family developed its own video and computer game rating system.

32.   Advocates of a V-chip rating board say the movie rating system has been helpful to parents without infringing on the rights of studios to make films.

33.   Broadcast executives see a TV rating system as a logistical nightmare.

34.   Broadcasters and cable operators began denouncing the V-chip, saying it would be impossible to agree on a rating system that the chips could read.

35.   But a rating system that allows parents to activate the V-chip will have to be universal.

36.   But although an electronics industry group has worked on signal standards, broadcasters and cable operators have yet to agree on a rating system.

37.   But Coats said he is introducing legislation that would require networks to implement a content-based rating system if they want access to the public airwaves.

38.   But forcing the industry to develop a rating system gives parents some important leverage.

39.   But industry executives highlighted their own efforts at regulation and objected to the possibility of any sort of universal rating system and government oversight.

40.   But it says that if the industry does not come up with a rating system, then the government will.