I would strongly recommend people not try to use the NBA TV app with the Roku. I just tried it, and purchased the NBA TV premium package, and the quality is absolutely abysmal. It is fuzzy and pixelated. NBA TV customer support suggested I clear the cache and restart Roku, and uninstall/reinstall the NBA app. I did all that, to no avail. It was still total garbage quality. And this was at noon on a weekday, so there were no issues with bandwidth.
I had literally just purchased this NBA TV app, and they were nice enough to immediately refund my money, so I do believe they know there is a problem. I strongly discourage people from purchasing any NBA TV app package if you are using a Roku. They are charging a premium price for an absolute garbage stream. It is totally unacceptable in this day and age for an organization as massive as the NBA to charge a premium price for an absolute garbage quality stream. It’s completely unconscionable.