This app was mentioned in 4 comments, with an average of 2.00 upvotes
Opera has a web browser designed for Android TV. Beware though, the company was just purchased by a Chinese company.
Since Opera sold his smart TV business, I guess you must update the Opera TV Browser to what is called now, Vewd Browser.
I've never used it, but there's an Opera TV Browser: https://play.google.com/store/apps/details?id=com.opera.tv.browser.sony.dia