Really, how about just signing up to the NBA League Pass? Sure it's expensive, but it doesn't need cable installation, just watch it from basically any internet accessible device.
League pass does not apply to nationally broadcast games or games in your local market. I live in LA and root for the Celtics, and watch all the home broadcasts with their arena feed. If I lived in Boston itβs not an option and I have to have a cable subscription.
If the team is on a national broadcast, it is also blacked out.
That being said, I listen to the finals on the local radio broadcasts via the NBA app because those are never blacked out.
NBA League Pass doesn't actually let you stream the playoffs (if you're in the USA), nor do you get to watch your local team. It's meant to be a supplement to a cable subscription, or a full subscription for international viewers.