MindSpark is a browser hijacker. It totally took over my Chrome browser on my Mac. And when I complained, really bitterly after several attempts to remove it, they just kept sending me pablum and "tickets" to deal with my "requests". My take is they are utterly unethical. I was simply trying to find some way to watch the World Series on my Mac, and somehow I got hijacked by these guys. The symptoms are: when you open your Chrome Browser in Mac, the start page is now "Television Fanatic", and all manner of commercial junk suddenly floods the home page. I cursed them, then more rationally communicated with them, and they don't seem interested in responding to a legitimate complaint that they have invaded my privacy and control of my browser. I do not recall giving any "consent" (I know how sketchy that can be), and I don't even recall requesting their "services". But the result has been a total pain in the $#*!, and I'm still sorting out how to get rid of their "start page," which persists in providing me with lots of annoying opportunities to spend money and watch TV content that has nothing to do with what I am interested in.
This is fraudulent behavior, unethical, and contradicts "best practices" for at least advising users/clients that they are about to make a major change, the dimensions of which are not described, even if there were a "privacy policy," or an "acceptance of terms and conditions."
Ultimately, this outfit needs to be stopped.