Thanks for posting here in the Roku Community.
Move up and down the grid to view different channels or left and right to browse upcoming programs as far as 7 days in advance. As you highlight each title, details change to include a description of the program, TV rating, and closed captioning.
You can open Live TV Channel Guide directly from the Live TV row in The Roku Channel, or you can access it any time you are watching a live streaming TV channel or an "over-the-air" channel (if you have an HDTV antenna connected to your Roku TV and the Live TV input has been set up). When you are watching a program, press left on the directional pad to open the channel guide. The directional pad is plus-shaped and is in the center of your Roku remote.
When Live TV Channel Guide opens, the movie or show you are currently watching will be highlighted in the grid. If you browse programs in the future, pressing replay on your Roku remote returns you to the current day and time in the grid.
If you still do not see your recently watched channels, you can perform a troubleshooting step by performing a system restart. To do this, navigate to Settings > System > Power > System Restart.
For more information, you can visit this support article on How to find TV listings using Live TV Channel Guide
We hope you find this information helpful, and let us know if you need further assistance.
Best wishes,
Kash
Takashi O.
Roku Community Moderator