deepseer
Thanks for the post.
Please be that the Fast Forward and Rewind buttons for each channel are not standardized and that each channel has their own settings for what those buttons will do. Have you tried pressing the back or forward directional buttons to see if that helps?
For more information about that channel's features and functionality, you'll want to contact the channel provider support directly to inquire further. Many channels on Roku are developed and maintained by the channel provider themselves.
Thanks,
Danny