A 3930RW should be able to run MLB. If that's the only channel giving you trouble, the problem probably lies with your MLB installation.
When problems are confined to a particular channel, it may be that the channel did not install correctly, has received a faulty update, or has subsequently gotten corrupted. A reinstall of the channel to get its latest version may fix the problem, so that is the first thing I would try. Remove/reinstall procedure:
- Highlight channel on home screen.
- Press * key on the Roku remote and choose Remove channel option.
[Note: If this channel is one for which you have a paid subscription through Roku, there will be a "Manage subscription" option instead. Click this and follow the prompts to cancel your subscription. (It will continue to run for the rest of the prepaid subscription period, but will not auto-renew at that point. You can resubscribe then if you like.) Now the "Remove channel" option will be shown.]
This will remove the channel from ALL Rokus linked to this Roku account. - IMPORTANT- IF YOU SKIP THIS STEP YOU MAY NOT GET A CLEAN RE-INSTALL:
Restart the Roku to clear its memory. Depending on your Roku model and Roku version number you'll find the System restart option under either Settings > System > Power or under Settings > System, or you can just pull the power plug for a few seconds and let it restart.. Repeat on any additional Rokus linked to this Roku account that were experiencing the same problem. - Reinstall the channel to your Roku account via the Roku Home page Streaming Channels menu option. This will install the channel on all Rokus linked to this Roku account.
Notes:- The channel will be added to the END of each Roku's channel grid.
- The Roku on which you performed the reinstall should get the installation immediately. On other Rokus linked to this Roku account you may need to force an update to get immediate installation via Settings > System > System update. Otherwise, it should be installed when each Roku does its daily check for updates.
- If channel requires a login, you may need to log in anew.
If the problem still persists with a channel with a paid subscription, try logging/signing out from within the channel app then loggins/signing back in.
If the problem persists at this point, it typically means the current version of the channel app has a problem that must be addressed by the channel itself as they are the ones that create the Roku-compatible version of their app and provide it to Roku.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X