Yes, just about every set-top HD box (such as the one provided by your local cable company) as well as HD-DVR boxes like Tivo and similar have one or more HD signal receivers built in. Just do a search for "clear QAM" set top box or clear QAM DVR.
Now understand that the "clear" in "clear QAM" basically translates into the HD channels your cable company will give you "for free*" with the asterisk translating into probably requiring at least a basic level of cable service. Many HD channels via cable will not be in the free tier, so I wouldn't expect much more than just the same local channels you can get if you put up an antenna or use rabbit ears. But, depending on where you are, there are sometimes a few "goodies" included in the "clear" zone (for now).
Also, since this is in the
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TV section, it probably goes without saying that
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TV has no such tuner built in. There are many clear QAM USB sticks you can plug into your computer and capture the free HD channels available in your cable's "free*" tier. Some of those make it not too difficult to convert those captures into
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TV-compatible video, which then can be watched on your
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TV. Look at Elgato and similar for those kinds of solutions.