The Town That Caught Tourette’s? 10 p.m., TLC
Remember this case? In 2011, a bunch of teenage girls in Le Roy, N.Y., caused a stir by developing Tourette’s-like symptoms at the same time. Were the tics and twitches the result of an infection or, as Erin Brockovich has suggested, an old chemical spill? Was this a case of unconscious mimicry, where some girls saw other girls with symptoms, in person or on YouTube, and began to imitate them? Did you notice that the documentary title has a question mark in it?