I will not support this notion, and it's probably for selfish reasons:
Long response but the bottom line is this: Think of all the rest whose rights you want to infringe just because you don't want to take the responsibility of self-censorship.
Longer version:
I believe people should take responsibility for what they watch on TV. There are tonnes of channels. If you don't like one, switch! Have you ever thought of someone else who actually was looking forward to that movie/prog and is actually 18 and above? If you cannot control your household please don't take it out on the rest.
Remember, the role of the board is not to ban 18 and over movies but to enforce the rule that the movie is correctly rated. A TV station should not be able to pass off an R Rated movie as PG. But the 18 and above viewers have a RIGHT to watch those boobs and sex on TV. They earned it by virtue of age. And it's the board's mandate to protect this right as well.
The TV station has an obligation to show clearly the age rating of what they are about to air. If they don't you have every right to complain to the board.
Once they show the rating, it is now upon you, as an adult, to make informed decision. Continuing to watch the show means you have accepted the responsibility that comes with it.
So how do they do the rating?
I heard that TVs must submit the movies they intend to air to the board for the board's rating and approval. If the board deems the movie too raunchy of course they will block it.
Frankly this is why I stopped watching local stations. The nudity and profanity is part of the movie, it's part of what makes it complete. Would I watch it with my parents? Hell no.
Food for thought:
a) Sexuality is all about context. In some cases, the soaps are more sexual than the nudity in movies. Remember our ancestors (up until quite recently, I might add) used to operate topless. But it was not considered sexual. Same way you could see a woman breastfeeding and you dont "feel" anything (if you do, you are a perv. Get help!)
b) Censorship is really for the masses. To bypass the censorship you only need to get out of mass media channels. DSTV, Internet, etc. There you are in control. Strangely enough, this also gives you more control in terms of household content viewership.
c) As for heading toward wrong direction, I remember in the 90s,KBC, the only national TV then, usedto play lots of movies with nudity on Saturday nights. So this is not a new trend coming up. In fact TV station have become extremely soft of late.