TCL 49S403 User Manual page 46

Why does the TV need my time zone?
The TV needs to know your time zone so that it can correctly display time information
about the program you are currently watching.
5. When prompted, select whether to add analog channels 3 and 4. These
channels enable you to connect older set top boxes, VCRs, or game consoles.
6. Wait while your TV scans for Antenna TV stations...
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