Buy a new TV and you're likely to consider several add-on purchases, including a soundbar and a streaming set-op box. The two come together in the new Roku Soundbar with the optional companion of the Roku Subwoofer. Sure, a Roku soundbar makes a lot of sense, but how does it perform, and do you need the sub, or is it just for fun? We dive into what the Roku Soundbar does and doesn't do as well as how well it performs against similarly priced solutions.