Channel Zero is a horror anthology series that aired on Syfy. I bought my copy of this first season used.
Review:
Mike Painter is a child psychologist who hasn't been back to his hometown in years, not since his twin brother became one of the victims of a serial killer targeting children. Most of the victims were discovered in a forest, missing their teeth. Mike's brother Eddie was the only child never found.
After some kind of psychotic break forces Mike to take some time away from his wife and young daughter, he decides to go back to his hometown and face the memories he tried to leave behind. His relationship with his mother is awkward, and tensions rise between him and a few other local residents when his arrival seemingly prompts the killer from 1988 to reappear. People think Mike and/or his family may have something to do with the killings, but Mike insists that the true thing linking them all together is a children's TV show called Candle Cove. It only aired during the killings in 1988, and for some reason local children are starting to see it on TV again.
