Solving playback issues

[nuttnutt3k]

Re: PBS and CN CARTOON Network. These two apps will not work on my tv. They did previously , but no longer.

I’ve deleted and reinstalled plus the other aforementioned solutions, all to no avail. 
They act like they are going to work but then stop and return to main screen. 
is there a different solution to this problem? 
Thank you for any help.

[makaiguy]

@nuttnutt3k-

After removing the channels, but BEFORE reinstalling them, did you RESTART** your Roku to clear its memory cache?  Without the restart you may not get a clean reinstall.  This is not a cure-all but at least it will assure you of having an uncorrupted copy of the current channel app.
 
Depending on your Roku model number you'll find the "System restart" option under either "Settings > System > Power" or under "Settings > System".   If you don't have sufficient control to use the menus, or if it is just more convenient, you can also restart by pulling the power plug for a short while, then plugging it back in.
 
**On a Roku TV with "Fast TV Start" enabled, turning the TV off/on only puts you in/out of a low power standby state, it does NOT give you a complete restart.  Use the methods above.