Monday television

"Bones" 8 p.m. Fox — An undercover police officer is found dead in a van with a bag of diamonds inside his mutilated body.

"Dancing With the Stars" 8 p.m. ABC — D.L. Hughley is by far the worst dancer of the bunch.

"How I Met Your Mother" 8 p.m. CBS — Marshall and Robin engage in a dance-off.

"The Voice" 8 p.m. NBC (third season debut) — Usher and Shakira are new judges, subbing for Cee Lo Green and Christina Aguilera.

"Dallas" 9 p.m. TNT — Did Christopher's technology cause a disaster?

"The Following" 9 p.m. Fox — Ryan reunites with an old friend.

"Revolution" 10:01 p.m. NBC — After a three-month hiatus, will fans return? Monroe has power and is going to use it.