Some options I’ve used to get notifications to the TV.
Samsung TV notification (older models only):
Background info:
http://forum.micasaverde.com/index.php?topic=23769.15
Tool to discover TV capability:
https://software.intel.com/en-us/articles/intel-software-for-upnp-technology-download-tools
Android app that send notification directly to older Samsung TVs:
https://play.google.com/store/apps/details?id=eu.saramak.callnotifier.samsungtv
Kodi and Kore (Kodi Remote app):
If you use Kodi you can setup the Kodi remote app Kore on your Android. Enable “Send Notifications While Playing” option to get phone/text notification to Kodi. Works well with Android but not sure if this works with iOS version.
https://play.google.com/store/apps/details?id=org.xbmc.kore
Kodi for SmartThings (SmartApp):
You can use this with CoRE to send notifications from ST to Kodi using sendNotification() capability. You can even run Addons to do things like having live camera feeds pop up on Kodi when there’s motion activity in ST as an example.
[RELEASE] Kodi for SmartThings BETA
https://github.com/iamcanadian2222/ST-Kodi/blob/master/CAPABILITIES.md