After the launch of Freesat, we have had a few emails asking what exactly “HD” is. We’ve compiled a guide for you to help you understand.
What is HDTV?
High definition (HD) offers picture quality with four times more detail than standard definition (SD) TV delivering vibrant colour, stunning detail and incredible depth. It’s the ultimate way to watch your favourite movies, TV programmes and sporting events and it’s going to blow you away!
High definition television, or HD TV, is a new standard that delivers higher picture quality and better sound than traditional TV technology. Put simply, older flat screen TVs support current standard definition TV broadcasts, DVD players and games consoles but they can’t reproduce the higher picture quality of the new generation high definition programming.
How Does It Work?
HD TV or high definition television offers the highest picture quality available today. Instead of using the conventional 625 lines to plot a TV picture, HDTV uses 720 or 1080 lines. In addition, the pixels in each of those lines are closer together. This results in a hugely improved picture quality, clarity and colour definition. HD also uses millions more colours than SD TV, increasing the richness and intensity of everything you watch. Most HD programmes and movies are also created with cinema-style surround sound, that you can experience in full with a compatible surround sound system.
