Television Buying Guide 2

Television Types
Televisions can be categorized into four different groups according to what type of signal they can accept and what picture quality they can show:

1. Analog
2. SDTV (Standard Definition Television)
   
3. EDTV (Enhanced Definition Television)
4. HDTV (High Definition Television)

Analog
This type of television can not display HDTV programmes. It can only show standard definition programmes found on regular television, cable, or satellite channels.

SDTV
This type of television (standard-definition) is basically an analog television plus a built-in ATSC tuner. Therefore, it can receive digital television broadcasts. It will display a picture from these broadcasts, but HDTV shows will not look nearly as detailed as they would on a true HDTV.

EDTV
This type of television (enhanced-definition) is usually a type of television that can display HDTV signals but doesn't have enough resolution to really do them justice. Most often it applies to plasma televisions and denotes 852×480 resolution.

HDTV
High-definition televisions, or HDTV, can display standard television, progressive-scan DVD, and HDTV signals. They are by far the most common type of digital television. Nearly every plasma, LCD, and rear-projection television is an HDTV.