Plecto TV App
Plecto has native TV apps for LG, Samsung and smart TVs running on Android. If you can't find Plecto in your TV's app store, you can use the TV browser instead.
Once installed, you can activate a slideshow using your computer or mobile app:
From computer: Go to Slideshows > TV management > Activate TV and follow the instructions on the screen.
From mobile app: Tap More in the bottom-right corner, then tap Add TV and scan the QR code on your TV screen.