Please remove the Chromecast built-in banner on the ambient mode view. There is an entire thread on Sony support of complaints that android tv (built in) does not have a true ambient mode, since the ad banner shows on top of the ambient artwork. This isn't an issue on Samsung proprietary, just Sony high end android television.
Did not have this issue with the Chromecast dongle on my old TV.
I appreciate you taking your time to let us know about a feature that you would like to see. Feedback like this helps us constantly improve our products and services by knowing what we are doing right and what we can work on.
Please let us know if you have any other questions.
Since this thread hasn't had activity in a while, we're going to close it to keep content fresh.
If the issue is specifically with your TV that has a built-in Chromecast, I'd suggest you reach out with your TV manufacturer for additional help.
If you have other questions and concerns, feel free to submit another post and provide as many details as possible so that others can lend a hand. Hope this helps!