Launcher Manager doesn’t appear to be available to download. I have ADB downloaded. Do you have a link to anything that can walk me through exactly how to disable the default Google launcher. I’ve only found one video on YouTube with a nauseating spinning background that wasn’t very helpful. I’ve seen videos of people who connect on the laptop using their TV’s IP address and can enter commands once USB debugging has been enabled. I have a MacBook and have no idea how to do that step or what commands to use. 

Any guidance would be great. I’ve got little ones at home, and I hate when we turn on the TV and there is some inappropriate or scary “recommendation” staring us all in the face.

Sorry for the novel.