Apple HomeKit (binding or honebridge)? Control tv

I’ve got some rm3 devices that can control my Samsung tv (via broad link-mqtt). The tv power has been added to HomeKit via the HomeKit binding as a switch.

What I’d like to be able to do is to ask Siri to change the tv channel to x.

Would this be something the binding could do (as I assume it needs to know it’s a tv). Or is there where homebridge is more featured?