Question: if you have a smart tv do you need a roku?
Answer: If you already have a “smart TV”, you might not need a Roku. Your smart TV already does a lot of what the Roku does. Most current Roku models only have HDMI output, so they won't work with an old tube-type TV. The exception is the Roku Express+ 2018 edition, which has composite video outputs in addition to HDMI.