Other

com.huaqin.sar

Risk: Safe
Source: Manufacturer
What it is: Other

What it is

SetTransmitPower

I can't access the apk but I'm pretty sure it is another hidden test app not meant to be used by end-user

Given its name it could be used to adjust the transmit power of the cell phone antennas

SAR = Specific Absorption Rate (https://en.wikipedia.org/wiki/Specific_absorption_rate)

XDA users removed this without any issues. To be 100% sure it would be good to test the SAR without this package (just in case)

Commands

adb shell pm uninstall --user 0 com.huaqin.sar

To put it back:

adb shell cmd package install-existing com.huaqin.sar

Every removal listed here is per-user only: the system image is untouched, and the restore command puts the app back from the copy already on the device. Nothing is downloaded.

This is not the directory. Here we say what a package is in general; what happens on your particular television is on your model's entry, and that one wins. The same package can be dead weight on one set and hold the home screen up on another.