Monday night on TV

NFL football (5 p.m., ESPN): Patriots at Dolphins

Bachelor Pad (7 p.m., Ch. 4): The four remaining couples go to Las Vegas, then the grand prize is awarded at 8 p.m.

The Closer (7 p.m., TNT): The squad investigates the death of a deputy sheriff.

Hell's Kitchen (8 p.m., Ch. 13): The five remaining chefs again try to prove themselves to chef Ramsay.

Rizzoli & Isles (8 p.m., TNT): A serial killer claims to have clues about the murder of another prisoner.

The CW 2011 Fall Preview (8:15 p.m., The CW): Maggie Q and Kristoffer Polaha host a sneak peek at the new fall season.