I have watched the shows. In one show(forgot name), it's a major company that does the flip, so they have the resources(funds) to flip these houses. For individuals, I would not call it easy money, it takes a lot of time and money. I have a friend that has flipped houses for about two years, I'm surprised he has not had a heart attack yet
(making mortgage payments, dealing with contractors, permits, etc.). But in his case, I think he bites off a little too much than he can chew.
I remember one house he bought, he only ended up putting seven thousand dollars in his pocket, after almost ten months of headaches. The house ended up needing a lot more work then what he anticipated. If it's a full time job, I would give it a shot, but not in addition to full time employment.