Here's why:
* Different Broadcast Standards: The USA uses the ATSC (Advanced Television Systems Committee) standard for digital television broadcasting, while Hong Kong uses the DMB-TH (Digital Multimedia Broadcasting - Terrestrial) standard. These are incompatible systems, meaning the TV's tuner is designed to receive and decode signals only from the DMB-TH standard.
* Tuner Technology: The tuner in the Hong Kong TV is specifically designed to receive DMB-TH signals and cannot process the ATSC signals used in the USA.
* Frequency Bands: Even if a tuner could technically process both standards, the frequency bands used for digital television broadcasts differ between Hong Kong and the USA. This would prevent the Hong Kong TV from receiving any ATSC signals.
Possible Solutions:
* External Tuner: You can purchase an external ATSC tuner box that connects to your Hong Kong TV via HDMI. This tuner will decode the ATSC signals and output the video to your TV.
* New TV: The most reliable solution is to buy a new TV specifically designed for the US market, which will include an integrated ATSC tuner.
Keep in mind that an external tuner might not offer the same functionality as a built-in tuner, such as the ability to record programs directly to the TV.