Here are some options for watching APTN lumi on your TV.

You can stream your content on iOS devices via AirPlay or Chromecast and via Chomecast on Android devices

More information is available here for Chromecast:

How to stream:

If you successfully connected to your streaming device a streaming icon will appear when you are playing the video. Either an Airplay icon or a generic streaming icon for Chromecast.  Click on these icons near the upper right-hand corner of the screen to start streaming.

Note:  When casting from your iOS device - the streaming may stop when your Auto-Lock screen setting engages.  This setting is typically set to 2 minutes.  If your streaming stops or freezes change your auto-lock settings to "Never" while streaming on your iOS device.  Go to Settings | Display & Brightness | Auto-Lock

If your device supports HDMI - you can also connect your device directly to your TV set via an HDMI cable.