Cannot stream old tv shows purchased on iTunes over Airplay to a Roku device
I am trying to stream old tv shows that I purchased years ago on iTunes over Airplay to a Roku 4k+ device connected to an HD TV. Airplay returns an error stating that it can't stream to the TV. I've tried rebooting all devices. All devices are on the same network and configured for same video quality (at least as far as I can tell). The tv show is the HD version.
iPad mini 4 Wi-Fi