I had a Samsung QLED TV, and still had to upgrade the firmware once. Thankfully you can do this by USB storage without connecting the TV to the Internet. The

I had a Samsung QLED TV, and still had to upgrade the firmware once. Thankfully you can do this by USB storage without connecting the TV to the Internet. The preloaded firmware had audio issues where sound would drop out, even when playing through the built-in speakers, and I haven't seen that issue happen since upgrading the firmware.