Various media players detected, how do I find out what they are?

Yesterday my Home Assistant installation detected an Apple TV 3, a DLNA Digital Media Renderer and a google cast. Nothing new has been added to my network and I certainly don’t have an Apple TV or Google cast connected. I presume it’s detecting an existing device as these but how do I find out which device that is ?

Just knowing the IP address of the device would be handy but I can’t see that anywhere.