A TV tuner is a device that allows you to watch and record TV on your computer. For more information, see How do I watch or record TV on my computer?
If you have problems with your TV tuner, the manufacturer's website is the best place to go for software updates and technical support. If your TV tuner came preinstalled inside your computer, contact your computer manufacturer. (Go to the Computer Manufacturers' Contact Information page
on the Microsoft Help and Support website for a list of contacts.)
Here are websites for some of the most common TV tuner manufacturers:
Hauppauge Computer Works
Silicondust USA, Inc.
ADS Technologies, Inc.
Advanced Micro Devices, Inc. (featuring ATI products)
AVerMedia Technologies, Inc.
KWorld Computer Co., Ltd.
Leadtek Research Inc.
Pinnacle Systems, Inc.