TV is available on some computers, but this can be reliant on how good the digital TV signal is, with digital TV, the signal is stronger but a laptop still needs a receiver as it works on a different principle as it is encoded and therefore needs to be decoded in order to make out the images.
A digital TV tuner can be a small device that plugs into the USB port and it then connected to a small antenna, once connected a whole new world of television will open up before your eyes. Similar to a home set top box, this device has a built in electronic TV Guide and will allow the user to select programmes to record too.
Here are the specs and features of the instant laptop HDTV receiver:
It uses the same ATSC tuner found in full-sized HDTVs and supports up to 1920 x 1080 resolution. Includes software that allows you to schedule and record content as MPEG4 files. Works with Windows 7, Vista, and XP SP2 (not compatible with 64-bit systems). With digital broadcasts, a weak signal will result in no picture. Includes remote. 3 1/2″ L x 1″ D. (3 oz.)
Priced at $79.95
Source [Hammacher Schlemmer]
