A new sneak peek at 20/20 Season 49, Episode 3 takes viewers inside a creepy abandoned house where a woman was found dead.

TL;DR: “20/20” kicks off its new season tonight, Friday, Sept. 25, at 9 p.m. ET on ABC with “The Salem Strangler,” a two-hour investigation into the 1986 murder of Salem State student Claire Gravel.

"20/20" is airing a new episode about Catherine Blauvelt. Here's everything you need to know to watch, live or later on, if ...

ABC News has partnered with SiriusXM to bring two of its household-name brands to the satellite radio service. Starting on Monday, “ABC News Live” will be channel 796 on the app, while “20/20 True ...