You can rent blue movie video tapes and a player - even if you aren't rich. The Internet is nowhere near as easily accessible. A PC costs probably twice what a colour TV does. Then you need access, which, while relatively cheap, is not available all over the country yet. Getting the Internet to work for you takes time and some degree of computer literacy.
Phone lines are largely terrible, though improving.
Switching on a TV is much easier. TV has swamped us with western cultural influences, so any attempts to curb foreign influences on the net is like, as we say in Hindi, swallowing an elephant but choking on its tail. Within the US, I believe, you let local standards decide what pornography is, as the AA-BBS case highlights. The way it works now, in my opinion, is just fine. Our local hub does not carry alt.sex.whatever, but if you discreetly download something, nobody looks.