While a TV tuner can let you watch TV shows on your laptop, copyright restrictions and the lack of free resources limit its usefulness. To make the most of your laptop's TV capabilities, purchase an external tuner card that connects to an antenna or cable TV source and works with the media software that comes with your Windows Vista or later operating system.
Some laptops have a built-in TV tuner, such as the Sony VAIO VGN-AX570G and the Dell Inspiron 9300. These systems seek to compete with desktop PCs with integrated TV tuners, such as the Fujitsu LifeBook N6210 and the Toshiba Qosmio G25-AV513.
To use an external tuner for your laptop, connect a coaxial cable from the device's output to a free USB port on the computer. Some external tuners include a USB extension cable, if the hardware manufacturer doesn't provide one in the package. Plug the device into an available port and follow the prompts to install the drivers and media software program. Once the software is installed, you can manage your TV-recording storage in the same way that you would for any other media file.
Other external TV tuner devices connect to RCA or mini-jack analog audio inputs. RCA-to-3.5 mm jack adapters may be needed, if your laptop doesn't have the appropriate connectors. If the video outputs on your laptop don't support the connection of an external tuner, you can get a PCI TV-card tuner to install in a desktop computer.