How to Get Away with Murder Rests Its Case After Six Seasons

One of TV's twistiest dramas comes to an end tonight, as How to Get Away With Murder concludes its sixth and final season. Also tonight: Station 19 and Katy Keene wrap their seasons, while The Misery Index returns for its second season and Bill Nye the Science Guy gets entangled in a web of deceit on Blindspot. Here's what's new and noteworthy on TV this Thursday:

SEASON FINALE: ABC's long-running series How To Get Away With Murder promises to answer all our burning questions in its series finale, not least of which is who killed Annalise (Viola Davis)? Of course it wouldn't be HTGAWM without some surprises, and if this deleted scene is any indication, there should be plenty. Watch the preview. 10:00 PM ET on ABC

SEASON FINALE: The team works to extricate a doctor from the hospital on the season finale of Station 19. Meanwhile, Andy (Jaina Lee Ortiz) looks for the truth behind her mother's death. Watch the preview. 8:00 PM ET on ABC

SEASON FINALE: A new perspective leads to new opportunities for Katy Keene (Lucy Hale). Josie (Ashleigh Murray) is concerned for Alexander (Lucien Laviscount) and looks for someone to help. Watch the preview. 8:00 PM ET on The CW

NEW EPISODE: The mountains are calling, and the surviving Top Chef: All Stars are heeding the call. Midway through a season that's seen more than its share of reversals and comebacks, the chefs are heading on a cabin retreat for a series of summer-camp-inspired challenges. 10:00 PM ET on Bravo

SEASON PREMIERE: Jameela Jamil and the stars of Impractical Jokers return for the second season of The Misery Index, the series in which contestants rate horrible life events in the hopes of winning a $30,000 prize. Tonight's dreadful moments involve online dating and an office flasher. Watch the trailer. 10:30 PM ET on TBS

NEW EPISODE: Robin (Sarah Wayne Callies) ponders the possibilities of a new romance on Council of Dads, meanwhile, Larry (Michael O'Neill) is doing his best to learn from his mistakes. Watch the preview. 8:00 PM ET on ABC

NEW EPISODE: Hoping to draw Matthew Weitz (Aaron Abrams) to their cause, Jane (Jaimie Alexander) and her Blindspot cohorts approach her father for help. Bill Nye the Science Guy guest stars. Watch the preview. 9:00 PM ET on NBC

Mike Attebery is Senior Editor at Primetimer and the author of seven mystery thrillers. Follow him on Twitter at @mikeattebery.