New year, new schedule fillers-and Fox doesn’t waste any time reminding viewers that the promises of mid-season TV can be a mixed bag. “The Mick,” a predictably crude but sometimes funny comedy that premiA red Sunday after football, could also be called “Aunt Buck”: Kaitlin Olson, who knows something about provocative humor thanks to 12 seasons and counting on FX’s fan favorite “It’s Always Sunny in Philadelphia,” stars here as Mackenzie , a Rhode Islander of undetermined age who never grew out of her party-girl lifestyle and has no regrets whatsoever about that.