The new Viceland cable channel takes to the air Monday with the ultimate in user-generated programming. The network set up a phone number a few weeks ago and invited callers. They reached a recording with simple instructions -- talk about what kept them up at night, or what they would do as president. Much of the network's first day on the air will be footage of executives listening to these messages... There's a "let's put on a show" vibe to Viceland, a partnership between Vice Media and the A&E Networks. It replaces the H2 network on cable and satellite systems,...