Welcome and thank you for posting here in the Roku Community, @ChrisLummus!
It is with great pleasure to further assist you in connecting your DVD player to your Roku streaming device.
In this case, may we first know the model of your DVD player? Also, kindly try to manually check for software updates on your Roku streaming player by navigating to your Home screen. Scroll up or down to select Settings > System > Software update > Check Now.
Furthermore, kindly try navigating to Settings > TV inputs and select the appropriate input that your DVD player is connected to then choose "Set Up Input".
Let us know how it goes and we'll continue assisting you from there. Hope this helps!
Best regards,
Carly
Carly Y.
Roku Community Moderator
