Three words - PC TV tuner. A PC TV tuner is a device that is connected to the computer, as well as to the cable or antenna television source in the same way that you would connect to any typical TV. All of the tuning is done with a combination of hardware and software, and so you should note that the quality will vary from one tuner to another based on the quality of the tuner components and the design of the application and drivers.
There are two types of TV tuners - internal and external. Internal tuners, known as PCI TV tuner cards, are a kind of television tuner that allow television signals to be received by a computer. The interfaces for TV tuner cards are most commonly either PCI bus expansion card or the newer PCI Express (PCIe) bus for many modern cards. But while internal TV tuners are used only for desktop computers, external USB models can be used for both desktops and laptops. Usually, TV tuner cards come with remote controls that enable users to change channels, adjust the volume, and modify the display settings among others. Upon connecting the computer to a TV signal, the PC will start receiving signals from an antenna or cable TV source and you can be on your way to enjoying TV on your computer.
Another good thing about TV tuner cards is that they add functionality. They enable users to record the shows they like for future playback without them having to pay a monthly subscription fee. Users are also permitted to hook up their VCR and save home movies to their computer's hard drive, and then back them up to DVD provided that they own a burner.
It is important, though, that users find a tuner that is specifically designed to interface with the laptop computer. Anyway, these devices are available with a variety of interfaces and feature sets that offer great compatibility with just about any personal computer.
This, now, is how to watch digital TV on laptop.
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