Serviio

Serviio uses different profiles for different devices. While it attempts to select the best profile for a device, sometimes you have to manually assign a profile. You didn't state your TV's make or model, so I can't suggest the correct profile to assign.

I will also say that DLNA support by various TV makers is dropping, as they don't seem to think local media playback is a critical function anymore. I stopped using any TV app for playing my media years ago, instead using an external player, such as a Roku or Nvidia Shield (among other devices).