where can i find a custom firmware for my roku onn tv? im really getting tired of turning the tv on and being greeted by an advertisement. i dont use any of the roku channels. i use it for youtube and game consoles. thing should be a tv not just another useless device pushing ads. if i dont get what i want i will gladly mail this **bleep**ing tv to roku in a million pieces.
I sincerely doubt custom firmware is possible. Factory reset it and don't set up the Internet connection. Just use it as a "dumb" TV.
Try Settings/Accessibility/Autoplay video, and change it to OFF.
I understand your frustration! Hopefully, you'll find a solution soon.