Every fall, casual viewers and industry insiders alike engage in a little game. They try to guess which of the new TV shows is so bad or so badly placed (or both) that it will be the first to get canceled. If, for fall 2012, you put your money on CBS’ “Jersey Shore”-meets-“Ally McBeal” show “Made in Jersey,” then consider yourself an ace prognosticator. Less than four weeks into the new season, CBS executives gave the low-rated Friday night show the ax.