Showing posts with label TV. Show all posts
Showing posts with label TV. Show all posts

Monday, March 21, 2016

article About What you need to know about TV boxes - (all-vga-corner)

Watch TV channels or movies online

Internet has changed our lifestyle and watching TV channels and movies are some of the benefits offered by high speed internet. You can no longer stick to the schedule offered by the broadcasting station and you can access to other channels in other countries.  A whole array of products offer to keep you entertained but it is tough to select the best product based on your needs. This page aims to simply and demystify the haze.

Conventional methods of watching TV

Broadcasting stations in your country wanted you to buy their cable and charge your monthly or per movie.  This is one of the most convenient and also the highly expensive way of watching movies or TV programs.  In Singapore, Starhub offers 65 channels for a monthly fee of S$26.75 while Singtel offers 90 channels for a monthly fee of S$34.90.  You can watch clear and lossless frame via your huge LED TV.  Why this is expensive?  The reason is blatantly clear.  You cannot watch more than 2 stations simultaneously so why are you paying for 60 over channels.  Most of these program are recycled many times in the month so effectively, you cannot watch what you want and may watch more than you wanted.  Next come our alternative....Mobile Apps.

TV Applications

You can download and watch TV channels via your mobile phone.  The drawbacks are the apps may not be trustworthy (or worst infested with virus/spyware) and the application is not be updated.  If the application can work successfully, you are bound to watch the show through the small 5.5" screen of your mobile device (worst for iPhone users).  The permanent damage to your eyes far outweighs the benefits of catching your favourite TV shows or movies.

TV Box

The best and least expensive way is to watch it via your LED TV with a dedicated TV box.  In short, there are 2 types of different TV boxes.  TV boxes that costs S$50 to S$150 come with no server in the backend and TV boxes that comes with server will cost S$250 or more.  Why servers are important?  They are the guaranteed sources of programs and movies offered by the TV box manufacturers so you do not have to find different sources to install.  If the server is shut down due to local policy, you may lose all the rights to access the server and your TV box will cess to work.  It happened to some TV boxes and consumers are fooled into thinking it is a one-time investment.  When the market is saturated, the manufacturer will convert the TV box into a monthly or yearly subscriptions basis and expect consumers to foot the bill.  This caused many unnecessary stress and unhappiness for consumers.

Conclusions

In short, there is no free lunch in this world and manufacturers are motivated to provide movies and programs based on profit.  Do not be fooled into believing the server will last forever as government policy will change due to the pressure of the film makers as most of these movies are pirated versions from the cinemas.  As long as you do not download these movies, it is legal (at least for the moment) for you to watch what is online just like you watch youtube.  Afterall, the internet does not belong to any country or any organisation.
  

Monday, March 1, 2010

article About Should I buy a 3D TV now? - (all-vga-corner)


Avatar 3D the movie�

After Avatar 3D hits the US Box office, the spectacular wave of 3D movies sends the 3D rampage worldwide. Young and old enjoy the movie with the additional dimension despite wearing 2 glasses if you are short or far sighted (your own and another 3D glasses provided by the cinema). Many are eager to jump on the wagon of enjoying 3D movies and the first thing they wish to upgrade is their 32" LCD TV, especially for those with projector TV or CRT TV. But is this the best time to buy 3D TV now? What are the concerns in buying the 3D TV besides worrying about integration with the furniture? Well, you simply cannot wait to embrace 3D technology.
Let's talk about the equipments first. Getting a 3D TV is just the tip of the iceberg. To enjoy 3D video, you need to get a blu-ray player, a true 3D TV and a 3D goggles/glasses (we will talk about the exceptions later in this blog). The best part about 3D is there is no defining standard so far so manufacturers can claim whatever they like on their products.

BLU-RAY PLAYER

Blu-Ray player is needed because high resolution video requires much storage space. Blu-Ray disk can accommodate any 3D video with ease so a Blu-Ray player is needed if you enjoy the movie.

True 3D TV

Forget about the brands because there are many junk TVs out there which are NOT True 3D. By definition, a True 3D TV should support 1920 x 1080 pixels, HDMI 1.4 and refresh rate of 120Hz. You can select from 4 technologies for TV � Liquid Crystal Display (LCD), Plasma, DLP (Digital Light Processing) and Cathode Ray Tube (CRT).
  • LCD TVs are light, good for static pictures, reasonable lifespan and have many 1080 pixel models to choose from due to the recent mass production. However, they are poorer in displaying fast moving pictures, suffers from pixel failures and generally expensive for 37" or above.
  • Plasma TVs enjoys a longer lifespan than LCD TV, has good viewing angles and great contrast ratios with excellent picture response. The drawbacks are they suffer from burn-in problem (that's why unsuitable to use with computers) and not available less than 37".
  • DLP TVs adopts projection technology to illuminate a large screen for viewing with good brightness and colour at a good price point. But they have a high recurrent cost in maintenance and poorer in picture quality as compared with Plasma. By the way, cinemas are using DLP for the big screen with polarized glasses.
  • CRT TVs can support upto 140Hz refresh rate but 3D, maybe you are talking about the sound effect. lol
Due to excessive flow of investment into LCD TVs and the preference of big screen, the market share for LCD is growing while Plasma, DLP and CRT are diminishing dramatically. Around 90% of new TVs sold worldwide are LCD TVs. That's why there are more 3D LED TVs in the market than the rest. However, many are junks which cannot meet the specifications of the True 3D. Due to the fact that we have 2 eyes, refresh rate must be doubled to 240Hz to achieve 120Hz for 3D. If you feel dizzy halfway through the movie, the LCD TV does not meet the specifications of 240Hz refresh rate. In addition, the display 3D images in interlace format, vertical 1080 lines will be halved to 540 lines. At the moment, hardware chip which can refresh at 240Hz is exorbitant priced so many LCD TVs are in fact having 1920 x 540 pixels. They are still one step away from the True 3D definition.

3D Goggles/Glasses

After much discussion about the TVs, you must be thinking 3D goggle/glasses should be the easiest equipment to buy. If you harbour this thought, you are dead wrong. Depending on the 3D TV you buy, you will need different 3D glasses because goggles also have no standards. For LCD and Plasma TVs, you need shutter glasses with batteries. The TV tells the glasses which eye should see the image being exhibited at the moment. For DLP TVs, you need polarized glasses (no battery needed). So don't buy the wrong goggles/glasses.

Other Technologies

Generally, the costs of True 3D LCD TV is around 3 times of normal LCD TVs. For high end TVs, some manufacturers are making 3D TVs without the need of wearing goggles/glasses. They may cost 6-10 times more so only a handful can afford. Other challenges include the integration of 3D googles with spectacles (50% of Singaporeans wear spectacles so I see 50% clowns inside the cinemas), the need of massive production of 3D movies and the R&D effort for a lower cost chip to power 240Hz refresh rate. Given the popularity of the movie Avatar, we hope to ride the wave to create a sensational 3D experience for all movies to come.

Final Comments

3D stereoscope is invented in 1844 while the first 3D movie (The power of love) is made in 1922. If everyone can wait for nearly 100 years for 3D technology to mature, you can wait too.