You are correct, this is a customer discussion forum and the presence of ASUS staff is minimal. If you ever need immediate technical support please contact phone support.
Also, if you have a product specific question please make sure to post in the relevant sub-forum where other owners of the same product might read it. This was originally posted in General where other threads would push it out of view.
The short answer is that external outputs on laptops are not limited by the display modes of the internal display. They are limited by the HDMI or DP version of the port. As long as you select a mode supported by both the laptop port and your TV's input, it will work.
A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station…