Hi @tsayers,
Welcome to the Roku Community!
We understand you are having difficulties using the DVD player with your Hisense Roku TV.
Have you tried contacting Hisense Support yet to inquire further? I'd suggest starting there to see what options or suggestions they can provide. Each Roku TV manufacturer provides direct support and warranty services for their products running the Roku OS.
You can reach them here: Hisense help support
If you have any other questions or concerns, please let us know.
Best regards,
Mary
Mary F.
Roku Community Moderator