Hi @Elizabeth123
Welcome to the Roku Community!
Thanks for letting us know about your trouble streaming with the NCIS channel on your Roku devices and the steps you took to resolve it.
Have you tried removing the channel you observed this issue on from the Roku home screen? Then, restart your device. Once it loads up again, add the channel and try playing content again.
Visit our Support article for more troubleshooting steps on How to resolve a channel playback issue.
If you cannot play videos from one channel after attempting the suggestions on the link, videos from other channels play fine; contact the channel provider's customer support team to report the issue and get help.
Channels on Roku are maintained by the channel developers themselves. In this case, an issue within that specific channel likely needs to be addressed with an update from the channel developer.
Please keep us posted on what you find out, and we'll continue assisting you from there.
All the best,
Chel
Jecheal R.
Roku Community Moderator