A:Answer All TVs entering the U.S. or that are manufactured in the U.S. since March 01, 2007, are mandated by the FCC to include an ATSC tuner. An ATSC tuner allows for the reception of Over-the-Air television broadcasts from U.S. television stations. The LG 32 inch Class 720p Smart HD TV (31.5'' Diag), Model # 32LM570BPUA has three built-in tuners, one of which is an ATSC tuner. It has an F-Type, 75-Ohm, Coaxial Connector in the back labeled 'Antenna/Cable In' that you can connect an internal or external antenna to so you can automatically search for available channels or that you can do a manual search for. If the Discovery channel, History channel etc., are available, the TV will be able to find the channles & store them...^IFV