Where Fire TVs have a sleek service menu, Panasonic's smart TVs have one that looks straight out of the early 2000s. As soon as you turn on your Panasonic TV, press the Volume Down button and hold it.

The menu was designed mainly for technicians and can be accessed using a specific button combination, which gives you access to hidden settings and advanced functions.

If you have an LG TV and are interested in the device's secret menu, here's how to find it.

For brands not listed in the chart, instructions are often similar and typically include these steps: Press “set-up” or “menu” on the TV remote control or converter box. Select “channels ...

To restart your iPhone without the power button, you can shut down via settings, ask Siri for help, or let your battery die. Then, recharge or turn back on.

The menu was designed mainly for technicians and can be accessed using a specific button combination, which gives you access to hidden settings and advanced functions.