I do not understand the argument that piracy is NOT "theft."
It's taking something of value - something that required time, effort, and money to create - taking that item without permission and without providing compensation.
You can argue about whether harm is actually done or not. I've downloaded MP3s and later bought albums from those artists I liked; they've made more money on me than they might have otherwise. You might be encouraging Iron Maiden to play in your homeland and make money selling concert tickets. You might argue that without a physical product, there is not a direct cost. You can certainly argue about the punishments, if any, that ought to be imposed.
None of that changes the simple truth that it's taking something without permission. It's not "watching TV the wrong way," it's theft.