
package com.battlelancer.seriesguide;

import android.app.backup.BackupAgentHelper;
import android.app.backup.SharedPreferencesBackupHelper;

public class PrefBackupHelper extends BackupAgentHelper {
    // The name of the SharedPreferences file
    static final String PREFS = "com.battlelancer.seriesguide_preferences";

    // A key to uniquely identify the set of backup data
    static final String PREFS_BACKUP_KEY = "prefs";

    // Allocate a helper and add it to the backup agent
    @Override
    public void onCreate() {
        SharedPreferencesBackupHelper helper = new SharedPreferencesBackupHelper(this, PREFS);
        addHelper(PREFS_BACKUP_KEY, helper);
    }
}

@@ -204,132 +204,8 @@
 r %7B%0D
-%0A    // The name of the SharedPreferences file%0D%0A    static final String PREFS = %22com.battlelancer.seriesguide_preferences%22;%0D
 %0A%0D%0A 
@@ -504,22 +504,72 @@
 er(this,
- PREFS
+%0D%0A                this.getPackageName() + %22_preferences%22
 );%0D%0A    

Use correct package name for backup helper (so it will work with the beta, too).