TV HIGHLIGHTS

Alone Together, 8 PM on FREE:

This characterdriven sitcom, executive produced by Andy Samberg’s The Lonely Island production company, returns for Season 2, which finds stars and main characters Esther Povitsky and Benji Aflalo continuing their sometimes baffling friendship while trying to make their mark in Hollywood. Noteworthy Season 2 guest stars include Fran Drescher (“The Nanny”) as Esther’s mother, Carmen Electra as an enigmatic beauty who seduces Benji, and Natasha Leggero as a new acquaintance Esther meets at the gym. Another new episode follows.

The Originals, 9 PM on Ch. 26:

The spinoff of “The Vampire Diaries” ends its five-season run with “When the Saints Go Marching In,” destined to wrap up the saga of Klaus (Joseph Morgan), Elijah (Daniel Gillies) and their loved ones in a way that also indicates what their futures will be. The final chapter revolves primarily around saving Hope (Danielle Rose Russell). Charles Michael Davis, Riley Voelkel and Yusuf Gatewood also star.

The Sinner, 10:01 PM on USA; 12:59 AM on USA:

Jessica Biel, who scored an Emmy nod and a Golden Globe nomination for her performance in Season

1 of this mystery drama, continues as one of the show’s executive producers, but a new story line shifts the action to mostly new characters as the second season begins. Bill Pullman returns as Detective Harry Ambrose, who is drawn back to his rural New York hometown to investigate an 11-year-old boy’s (Elisha Henig) murder of his parents. Tracy Letts (“Divorce”) and Carrie Coons (“The Leftovers”) also star.