Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
Re: No FF,rewind,or pause on Daily Documentary channel.
Functionality within a specific channel is controlled by the channel creator. Roku does not develop or provide support for 3rd party channels, they simply provide the platform for others to use. Whomever controls that particular channel is who you need to contact to ask about this issue.
I looked up Daily Documentary in the channel store. It is provided by a company called Sun Media. This appears to be their web site: https://sunmedia.stream/
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Ultra (4800), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.