AVS Addicted Member
Join Date: May 2002
Location: Collingswood, N.J.
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The key phrase is "clear QAM" channels, which typically is only locals (limited basic). If you subscribe to expanded basic (USA, TNT, Spike, Food, etc.), then you will need a cable box for your HDTV for the additional subscribed channels.
If you have non-HDTV's and/or TV's without an internal clear QAM capable tuner, you can usually get two DTA's for free and get all subscribed channels (non-HD).
The bottom line is what tier of service you currently subscribe and the capabilites of the TV's you need to have serviced.