From February 2009, analog signals will be turned off and only digital TV signals will be transmitted over the air. Cable-based systems should not be affected since cable companies should continue to offer analog signals for most basic cable channels. Satellite systems already transmit digital signals and should not be affected either by the switchover.
If you happen to have a TV or device with an analog tuner you have two choices. You can buy a converter box and possibly use a government issued coupon to get a discount or you can replace the old analog-based TV with a brand new digital one. TVs can receive digital signals over the air, often using the same external antennas but they’ll need to have an ATSC digital tuner in order to hear or see anything.
A converter box will most likely be the cheapest solution, but you’ll have another remote to deal with. Some DTV converter boxes are already available like the Insignia Digital to Analog Converter Box which costs around $60. The federal government is offering $40 coupons that consumers can use on a basic converter box. You can request up to two coupons per household now through March 31, 2009.
If you are planning to be buying a new TV – The Syntax Olevia 527V can be purchased for just a shade over $500 but it offers 720p HDTV in a big 27 inch LCD TV. The Samsung LN-S1951W is a 19 inch LCD TV that gets good user ratings and costs around $400. The Toshiba 20HL67 is a 20 inch HDTV that gets good reviews and will cost you around $450. The Sharp AQUOS LC-19DV22U is a 720p LCD HDTV that you can buy for under $500.
Moreover if you don’t know if your TV set is digital & have misplaced the manual. You can find manuals and reviews for all popular gadgets and gear including GPS , Digital Cameras, Camcorders, Printers, and more from manufacturers including Sony, Panasonic, Canon, Nikon, and more.