So I have my Disney+ subscription through Roku. But I just noticed that Disney+ is now offering a combo deal on Disney+/Hulu for $9.99. Is there a way to upgrade my Roku-based Disney+ subscription to include Hulu?
Sorry, nope. I don't know if Roku offers bundles to anything. To get the bundle you'd have to cancel your subscription through Roku and get the bundle from Disney/Hulu. After cancellation your Roku subscription would still be valid until the end of its current term.