Blu Ray Vs. HDTV

Many buzzwords are thrown about when it comes to high definition video technologies. Most of these terms are confusing to the average shopper, who may end up spending hours studying and talking to sales associates in order to make an informed decision. There are currently two types of high definition content resolution standards. Understanding the differences between HDTV programming and the Blu-ray disc format will help with making these decisions.

HD resolutions

Currently, there are three types of high definition resolutions available: 720p, 1080i and 1080p. The numbers represent how many lines of vertical resolution are available. A television capable of displaying a 720p picture also supports 1080i signals, which is standard HD resolution. Televisions that support resolutions up to 1080p can also display 720p and 1080i programming. A television that supports a 1080p source is considered Full HD.

Resolution Difference

The "p" and the "i" represent whether the content is interlaced or progressive scan. Interlaced video renders the odd lines of resolution on one frame and the odds on the next, while a progressive scan image renders each frame completely on one cycle. The 720p and 1080i programming are very similar in picture quality. Some manufacturers will put a 1080 sticker on a television to confuse the consumer into thinking that she is buying a television that supports Full HD 1080p.

HD Television Programming

Cable and satellite television companies offer high definition programming for an additional cost. HD television programming comes in 720p and 1080i. Some channels have Dolby Digital to enhance the audio quality of those channels. Although it is not 5.1 surround sound, it is an improvement. Satellite companies have also included a few pay-per-view movies in 1080p, though the selection is limited and the quality is much less than a Blu-ray disc.

Blu-ray

Blu-ray disc is the latest format in home movies. A single Blu-ray disc holds up to 50GB of information. This innovation in capacity allows for uncompressed video and up to 7.1 channels of high definition audio . Blu-ray is currently the only format capable of sending an uncompressed 1080p signal.

Summary

When watching 720p or 1080i content, the picture is the same on all HD televisions. When watching Blu-ray movies, differences are highly noticeable. While it is possible to save money on a television that only supports 720p, purchasing a Full HD television will increase the picture quality of 1080p content.

Blu-ray players and movies are expensive, so many consumers choose not to get one right away. Buying a television that supports 1080p is helpful in the event of any future Blu-ray purchase, or when more 1080p content is available from providers.

References

• Understanding Television Resolution