It was a feature. And someone had already started using it.
For anyone with a TCL 50EP660 TV or any other device, it's essential to regularly check for firmware updates and install them when available. Not only can this improve the device's performance, but it can also fix bugs and add new features. firmware tcl 50ep660 upd
: Contact TCL Support to receive the specific .bin or .img firmware file for the 50EP660 model. It was a feature