Hi there! Thanks for reaching out. I understand you're subscribed to UP Faith & Family, set it up on both your Mac laptop (OS X 10.14) and smart TV, but you're seeing a lock icon on the show Heartland and can't stream anything. Let's work through this together.

To start, could you please confirm:
1. Are you signed in to the UP Faith & Family app on both devices with the same account you used to subscribe?
2. Have you tried signing out and back into the app to refresh the account status?
3. Was your subscription purchased directly through UP Faith & Family or through another platform like iTunes or the smart TV app store?

These details will help me guide you more precisely.

Meanwhile, here are some general steps that often resolve the "locked content" issue:

1. Verify Subscription and Login:
- Make sure you are logged in with the correct account tied to your paid subscription.
- If your subscription was purchased through Apple (iTunes), try using the "Restore Purchase" option on the sign-in screen, usually found at the bottom. This re-links your subscription to the app.

2. Check Device Limits:
- UP Faith & Family limits usage to a certain number of devices (usually 3). If you have activated your subscription on more devices before, the app might show a lock icon due to this.
- If you suspect this, try logging out on devices you are no longer using.

3. Restart Devices and App:
- On your Mac, quit the UP Faith & Family app completely and relaunch.
- Restart your Mac and smart TV to clear potential caching issues.

4. Update the App:
- Ensure the UP Faith & Family app is up to date on both your Mac (via the App Store) and smart TV.
- OS X 10.14 should still support the latest compatible version, but app updates often resolve streaming errors.

5. Network Checks:
- Confirm your internet speed is stable and fast enough for streaming.
- Try switching Wi-Fi networks or connecting via Ethernet on your Mac if possible.

If after trying these steps the lock icon remains, it may be due to account or licensing issues on UP Faith & Family’s end. In that case, you might want to reach out directly to UP Faith & Family subscriber support at [email protected] for account verification or subscription unlocking.

Let me know what you find or if you've already tried any of these steps, and we can narrow down the cause further! Are you satisfied with this initial guidance?