8 pm Bones (Fox) | The team investigates the murder of Jamie Delcampo, whose remains were found in a burnt-out car; Sweets takes a hiatus. (Watch an exclusive clip.)
8 pm How I Met Your Mother (CBS) | Barney and Robin squeeze in some alone time before their relatives arrive for the wedding. (Get behind-the-scenes scoop from Ted’s “kids”.)
8 pm iHeartRadio Music Festival (CW) | Two-night special presentation: Performers include Katy Perry (of course), Elton John, Muse and special guest Robin Thicke. (I’m deeply sorry that “Blurred Lines” is now stuck in your head for the rest of the day.) Night Two of the festival will air on Tuesday at 8 pm.
8 pm Dancing With the Stars (ABC) | The 11 remaining couples take on Hollywood Night, a theme that I don’t entirely understand.
8:30 pm We Are Men (CBS) | Series premiere: After getting left at the altar, Carter (Mayne Street’s Christopher Nicholas Smith) moves into a short-term apartment complex, where three experienced Casanovas (Monk’s Tony Shalhoub, House’s Kal Penn and Crossing Jordan’s Jerry O’Connell) teach him the art of being a bachelor.
9 pm Sleepy Hollow (Fox) | When the dream-infiltrating Sandman sets his sights on Abbie, she is forced to face her past — and her institutionalized sister, Jenny (recurring guest star Lyndie Greenwood, Nikita).
9:30 pm Mom (CBS) | Bonnie and Christy put aside their differences to handle a family crisis.
10 pm Hostages (CBS) | Duncan informs Ellen that her little time-buying ploy will cost her a family member’s life; One Tree Hill’s Hilarie Burton starts a recurring run as Brian’s assistant (and maybe a little more than his assistant, ifyoucatchmydrift). Read preview.
10 pm Castle (ABC) | Beckett races against time to find a stolen toxin capable of killing tens of thousands of people — including Castle, who was exposed to the substance. (Get scoop from Stana Katic and Lisa Edelstein.)
10 pm The Blacklist (NBC) | Red and Liz get suspicious of an assassin called The Freelancer, and try to prevent his next victim (guest star Isabella Rossellini, Blue Velvet) from getting killed. (Get scoop.)
COMING NEXT MONDAY: The CW’s Hart of Dixie and Beauty and the Beast return.
Hit the comments with your must-see picks from tonight’s lineup!Follow @rebeccaiannucci