20/20 (9 p.m., ABC) - A special two-hour “20/20” features a new interview with actor Robert Blake, who was acquitted of murdering his second wife Bonny Lee Bakley 18 years ago. ABC says the interview sheds new light on the case, and has Blake reflecting on his past, including his relationship with Bonny Bakley and his career. (Most interviews with Blake tend to get a little ranty and insane.) The special also includes interviews with other people involved in the case, including attorneys, fellow actors and Bakley’s sister. The documentary also takes a closer look at Bonny and her romantic pursuit of numerous famous men, including Jerry Lee Lewis and Christian Brando, son of actor Marlon Brando.
Hanging with the Hendersons (9 p.m., Animal Planet) - In this new series, veterinarian Dr. Tony Henderson and his three veterinarian sons care for a variety of animals.
Titans (Netflix) - A new DC Comics series following the Batman sidekick Dick Grayson / aka Robin, who leads a group of young superhuman misfits as they fight crime.
Future Man (Hulu) - All episodes of Season 2 land, picking up in 2162, where Josh, Wolf and Tiger learn that their mission to stop the cure from getting out didn’t work.
Some programming descriptions are provided by networks.