Is there an Android TV Box of any kind which allows me to give the customer a turn on and go solution, ie when the customer turns on the box it goes straight to the IPTV client without having to go throught the Android (TV) App menu?
Or another solution
Some apps can be set to start when the box boots.
Pretty much every single app I've used has this feature.
Smarters has a run on startup option.
iptv smarters
How do I set to start when box boots up?
Any box?
Starting the app on boot isn't generally a problem, the issue you'll find is when they press the home button, either accidentally or on purpose, it'll go back to the launcher.
I used XDS Live OS Launcher for some older users and just added Tivimate and a couple of other apps on the front page. No problem.
LTQ app does that! See demo at tvifyiptv.com
An option would be tivimate apk and set it to start on boot, if i remember there is that option.