Background: Additionally, cable-ready TV sets can display HD content without using an external box. They have a QAM tuner built-in and/or a card slot for inserting a CableCARD.
Question: What kind of built-in tuner will allow a cable-ready TV to display HD content without an external box?
Answer:<extra_id_0>.
<extra_id_0> QAM<extra_id_1>