A:Answer Thank you for your inquiry. We understand you are experiencing an issue with pausing live TV on your 65" F50 Series LED 4K UHD Smart Fire TV, while it functions correctly on your smaller Insignia models. To troubleshoot this, please perform the following steps: Unplug the TV from the power outlet for at least 30 seconds, then plug it back in and turn it on. Check for Software Updates: Go to Settings > My Fire TV > About > Check for System Update on the 65" TV. Install any available updates. If these steps do not resolve the issue, we recommend contacting Insignia customer support team (877-467-4289) directly for further assistance. We apologize for any inconvenience this may cause. - Mae | Insignia Support