20/20: BTK (9 p.m., ABC) - 20/20 continues its eight week series of two-hour true crime documentary specials on infamous murderers with one of the creepiest ever: The BTK Serial Killer. Dennis Rader spent decades tormenting women in Witchita, Kansas, (BTK stands for “bind, torture, kill”) while taunting the media and police with letters detailing his horrible crimes. Rader was arrested in 2005 and pled guilty to 10 counts of first degree murder and is currently serving 10 consecutive life sentences. Now his daughter Kerri Rawson gives her first television interview, discussing her childhood and how her family dealt with learning that her seemingly ordinary father (Boy Scout leader!) was basically a monster. The special also features interviews with a former assistant district attorney, police detectives, journalists and family members of BTK’s victims. IF YOU MISSED IT: If you missed Friday’s show, you can stream 20/20 online at the ABC 20/20 website, but you have to log in with a cable/satellite/streaming account. If you have cable, check the On Demand line-up. If you don’t have cable but have a streaming account such as Hulu Live (or regular Hulu), Sling, YouTube TV or Playstation Vue, you should be able to watch the show there.
Russian Doll (Netflix) - This new series co-created by Amy Poehler, Natasha Lyonne and Leslye Headland follows a young woman named Nadia (Lyonne) and her experiences as the guest of honor at a seemingly inescapable party one night in New York City. Chloe Sevigny also stars.
Into the Dark: Down (Hulu) - The fifth installment in this original series tracks a pair of office workers who get trapped in an elevator over a long Valentine’s Day weekend. But what at first promises to be a romantic connection turns dangerous and horrifying in this Blumhouse mash-up of rom-com and horror film genres.
True Detective / Crashing / High Maintenance (HBO) - Because you’ll probably be watching the Super Bowl on Sunday, HBO has made its Sunday shows available for streaming today (HBO Go, HBO Now).
Some programming descriptions are provided by networks.