Dateline: NBC, The Dish With Rachael Ray, Hairy Bikers

Dateline: NBC, 9 p.m., NBC

“A mother, who seemed to be happily married, was found dead in her backyard spa; greed, lust and lies lead to murder.” In my experience, often one too many margaritas can lead to death in the backyard spa.

The Dish With Rachael Ray, 8 p.m., QVC

Never mind when this woman has time to cook – when does she have time to sleep?

Hairy Bikers, 10 p.m., History

“The bikers set out to turn a pest problem into a delicious dish; a hunt for a large invasive river rat called nutria; a Cajun legend helps the boys turn their catch into spicy andouille sausage; a legendary jambalaya festival.” OK, what?