Somebody mentioned Dr. Pimple Popper to me recently and I thought they were making up an over-the-top fake reality show title. Imagine my shock when I found out that it was a real show. There's a reason I haven't watched anything aside from sports on network/cable TV in years.
If it's well received, then logically it's better to cancel it so that you can write it off of the sale. If it's poorly rated it's worth keeping because it won't be a worthwhile writeoff