The manual for this TV can be found
here. If you are watching broadcast television, or cable TV service that does NOT require use of a set top "cable box" tuner, you would connect the coax cable from the UHF / VHF antenna or cable into the
ANT cable connector on the rear of the TV as shown on page 8 & 9 in the manual.
You would then tell the TV setup to scan for available channels as shown on page 12 of the manual.
If you are using a seperate tuner - like those supplied by Cable TV, Dish, DirectTV, Satellite, etc. you should use (1) the HDMI 1, 2 or 3 inputs (HD) 720P and up; (2) the RGB inputs of AV2 for best picture quality 720P or better (HD), (3 & 4) the AV1 & AV3 (on the side next to HDMI) for 480i and possibly 480P (SD) and finally the ANT connector for 480i. If you have a computer that offers VGA jack to connect to an external monitor, use the PC connector on th erear of the TV to send it HD images.
Page 27 & 28 detail manual channel editing.
Good luck!
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