Goodbye, TV Channels--And Hello, TV Apps

When I was a kid, my brother graciously taught me what a half-Nelson was. It was a lesson learned from our nightly wrestling matches over the remote control, which was essentially the scepter in our little game of thrones. I suppose that made our old tube TV the Lee family version of Westeros.  Part sport, part habit, fighting over a remote was a clear by-product of the way people watched television. Entertainment moved in only one direction, as anything flowing down through channels tends to d...