HDTV

How it may come up:

1. I just got an awesome HDTV, and it’s amazing to watch sports on.
2. I’m probably going to buy an HDTV on black Friday.
3. If HD is High-definition, what does that make my TV, Regular D?

 

Overview:
     There are various classes of HDTV, broken down into four separate resolutions: 480p, 720p, 1080i, and 1080p. The numbers in those figures represent how many vertical lines of resolution are displayed at any given time. The “i” or “p” at the end of the classification stands for either “interlaced” or “progressive.” Interlaced video displays ½ of the total resolution during every refresh (there are at least 60 refreshes per second), while progressive displays have all lines of resolution active at all times. The difference between interlaced and progressive is confusing to many, as most would think that a 1080i set would be superior to a 720p TV, but the reality is that with more lines of resolution active at once, the 720p TV will usually have better picture quality.
    There are four major types of HDTVs: Plasma, LCD, DLP and rear projection. All the different technologies have their merits, but the battle now seems to be between plasma and LCDs, with LCDs gaining an edge in the market as they continue to get cheaper and more durable.
    Since the latter part of the 2000s, hastened by the impending digital TV switch in the United States as well as precipitously falling prices for sets, HDTV has become more and more prevalent in American homes, and more and more channels have begun offering wall-to-wall HD broadcasts. These days, it’s sometimes difficult to find traditional tube-based standard definition TVs as more and more retailers choose to stock the more expensive, but more impressive-looking, HDTVs.
    HDTV use will only grow as the years go on, and with things such as video game consoles and Blu-Ray players supporting native HD, as well as more TV shows jumping onto the HD bandwagon, the future looks unusually bright and clear for HDTV

Talk About It:

• HDTV’s origins trace back further than most people would imagine. The first system that could be considered high definition (over the traditional 480 lines of resolution of traditional TV) was a Soviet military videoconferencing device called Transformer, a system capable of displaying 1,125 lines of resolution (a spec not even top of the line modern HDTVs can beat).
• Commercial HDTV broadcasts began first in Japan in 1994, while they made their United States debut in 1996.
• The worlds largest HDTV is in Cowboys stadium in Arlington.  The 1080p TV is 72 feet high and 160 feet wide.

How I Really Feel:
    HDTV is the wave of the future, and sitting there defending the good old days of tube TVs will make you intensely unpopular. Brush up on your knowledge of 1080 vs. 720, the differences between plasma and LCD, and know what connections you’ll need to hook up your HDTV to your favorite electronic devices. The technology may seem daunting at first, but once you get used to it, you’ll never look back at your old analog tech again.

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By: admin