Remote controls come in several different types, but among the most common are the standard remote, which only works on your TV, and the universal remote, which allows you to control not only your TV, but other video and audio components.
It is possible to create theater-like sound quality by hooking up your DVD player to a set of speakers. DVD players are usually compatible with more than one type of the following sound formats and speaker setups.
Dolby Digital Dolby® Digital (AC3) Decoding Built-in allows the 5.1 channels (front right, front left, rear right, rear left, center and subwoofer) of sound to be decoded and then passed on to a receiver with 6-channel inputs. All Dolby® Digital decoders can also decode Dolby® ProLogic sound tracks. A very high percentage of home DVD-videos come with Dolby Digital soundtracks. It is also used in many digital TV channels and broadcasts, including HDTV.
DTS® DTS Decoding like Dolby® Digital, DTS is a 5.1-channel digital surround format that provides a separate channel of sound to five speakers (right, center, left, right surround, left surround) and a subwoofer. DTS is not the standard for most DVD-videos, but many people claim the sound quality is higher than that of Dolby.
Virtual Virtual surround sound attempts to create the illusion of surround sound through just the speakers on your television.
There are various types of tuners that may be built into a television:
NTSC (National Television System Committee) is the analog television broadcasting standard used widely in North America. It is referred to as a 525-line standard, but actually displays only 480 lines. NTSC is to be replaced with new DTV (Digital TV) standards in the coming years.
Progressive Scan creates a picture as a single image. This is different from older methods that sometimes caused screens to flicker. Pictures created using the Progressive Scan technique tend to look sharper and crisper. To use the Progressive Scan feature of your DVD player, your TV must also be capable of creating a picture using the Progressive Scan method.