A:Answer Like all other TVs that are manufactured in the U.S. or entering the U.S. since March 1, 2007, regardless of size, the LG LK610BBUA HDR Smart LED HD 720p TV - 32" Class (31.5" Diag), Model # 32LK610BBUA is mandated by the FCC to include an ATSC tuner (often called an ATSC receiver or HDTV tuner). This tuner allows the reception of digital television (DTV) channels transmitted by television stations in North America. The TV has a 75 Ohm, F-Type coaxial connector in the back labeled as Antenna/Cable In that you can attach an indoor or outdoor antenna to for the reception of Over-the-Air (OTA) broadcasts. The TV also has two other built-in tuners, an NTSC Tuner and a QAM tuner. The QAM (quadrature amplitude modulation) tuner which is the cable equivalent of an ATSC tuner which allows your TV to tune to the unencrypted digital or HD cable channels. The TV has a “Channel Search” or “Auto Program” function that will automatically scan the incoming signals and detect the ones that are available. You will need to to do a channel search before your TV will allow you to tune to a specific channel. The 32LK610BPUA has the following inputs for connecting external devices: HDMI, Audio Return Channel Support (via HDMI), USB v 2.0, RF In (Antenna/Cable), Composite In, Ethernet, Digital Audio Out (Optical). If you are in need of any assistance, have additional questions, or would just like to see our helpful tips, check us out on Twitter @LGUSSupport or you can give us a call at 800-243-0000. ^CP
