I have a two Roku TVs. My larger 65" TV is made by Philips. When I screen cast to it, the sound is played beautifully on it. However, with my smaller 42" TV made by onn. , this is not the case. I...
On your computer, look for "sound options" or something similar. (possibly a speaker icon). You should be able to select the TV as the "output" after you get your video playing on it.
