There’s no need to be an artist, just an expert in some form of art. Visit galleries. Get on their email lists, and go to their parties. Get to know their clients. Gallery owners will love you, even recommend your services, because you’ll be telling people to buy art from them. You don’t have to own any inventory. It’s pure consulting. There is almost no overhead cost for a business like this. It’s really about having a passion for art and a knack for earning people’s trust. And it’s fun!
Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. 
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.