QAM Tuners

All QAM tuners are not created equal; I cannot find any examples to show you of QAM tuners for inside your TV; however, there is a growing market for QAM tuners you can plug into your computer or laptop to receive Clear QAM digital channels, so I'll show you what some models look like. There are many makers but the most well-known is Hauppage; here are some prime products from Hauppage Computer Works, in the US, who make QAM tuners in combo with other receivers, so you can pick up just about any digital cable TV shows on your computer:

The Hauppage 'WinTV-HVR-950Q'
Hauppage recently introduced these nifty QAM tuners for when you want to access Clear QAM channels on your computer or laptop. They are USB drive-sized and that is what they look like, with a cable connection on one end and a USB plug on the other. The package includes a wafer-thin remote control and a portable antenna. Features are many, and include the ability to receive and tune Clear QAM digital cable TV, NTSC analog cable and Over The Air (OTA) TV, and ATSC digital OTA HDTV. Pretty much anything you'll need, anywhere, to ramp some digital cable TV channels through your computer and laptop, where you can watch and record your fave shows.
WinTV-HVR-950Q examples

Also by Hauppage and for use with computers and laptops, below is a QAM tuner box that offers all the features of the above device and more; the extra items include audio/video inputs for recording from set top boxes, VCRs and camcorders, and I especially like the IR Blaster; that stands for InfraRed Blaster, a device that acts as nexus between a recording device such as a DVR or VCR and a tuner; it allows the device to send signals to the tuner, such as asking the tuner to change channels to a pre-set channel at a pre-set time for recording.
A Hauppage tuner box example

Yet again by the masterful Hauppage, the WinTV-HVR-1850 board which, in a nutshell, serves the same purpose as the above units, but is a PCI board ready for snapping into your computer, internally, and meant to be used with Windows Vista.
WinTV-HVR-1850 board example