Notice the "may be". Although there are many entrepreneurs that make an excellent living at home in professions such as consulting or information technology, the home businesses listed here are not generally big money makers. They are however, legitimate businesses rather than "make money in your sleep" or any of those other phony work from home schemes.
With few exceptions, such as American Idol, the Super Bowl and the Olympics, it is not common for a substantial audience to watch a program at once. Still, networks do target particular demographics. Lifetime targets women and MTV targets youth. Sports channels, for example, STAR Sports, ESPN, STAR Cricket, and Fox Sports, target the niche market of sports enthusiasts.