This was the direct result of the research done when my four year old asked me “How does the TV work”?
With the advent of new and improved technology the old systems of delivering signals overhead have been replaced by coaxial or fibre optic cables have been replaced. The new technology uses the radio frequencies to send signals, which are caught by small dish shaped receivers and then transmitted to the set-top-box to translate into the TV Programme.
This is how the TV signal relay works. The dish shaped receiver being instrumental in the process also gives the system the more colloquial name of dish TV. From here cables run to individual homes and their TV sets bringing a better quality of signal than what was earlier available when it was transmitted by the TV antennae.
The cables transmit stronger, consistent and clearer signals than the air waves. In fact the cables can also be used to provide other unrelated services such as FM Radio programming, high speed internet also called broad band, and telephony.
As it is not economically possible to lay out vast cable networks in sparsely populated areas, a wireless cable system has also been devised and is used in Africa. This system uses micro waves instead of radio frequencies and happens to be more cost effective for isolated regions with low population densities.
While changing over to paid TV viewing one does wonder if it is worthwhile. After all what does this have that we can’t get for free by just raising our own TV antenna on the roof? It is a good question with an even better answer. Besides there being a wider range of channels that are available when you pay for TV, there are other special interest channels which one would never get if we did not opt in for this service.
The wider range of programmes available helps broaden your horizons. There is more entertainment and more educational information on these channels as well. The quality of programmes on pay channels is higher than those shown on the free ones. Besides there are special interest channels available which are highly education.
For someone with a young child or two at home, these channels can be highly educational. The kid’s channels have special programmes for all levels of children to supplement what they would be learning at school. From mathematics to environmental science and civic behaviour to scientific experimentation, these programmes have it all.
Why just the kids, the documentaries and historical programmes on some channels have a lot to teach even us adults. Just make sure that you limit the viewing time. We do want to get some fresh air in the day as well.