Memorial Day Marathons and True Beauty

6 a.m. to 9 p.m., USA

NCIS marathon

Because you can never have too much Agent Gibbs (Mark Harmon).

8 a.m. to 9 p.m., A&E;

Hoarders marathon

What's better than a 13 straight hours of Hoarders repeats? Try 13 hours of repeats plus two new episodes, starting at 9 p.m. It's like A&E; is hoarding Hoarders.

8 a.m. to 7 p.m., BBC America

Star Trek: The Next Generation marathon

In the equation of life, TNG LeVar Burton > Reading Rainbow LeVar Burton.

8 a.m. to 10 p.m., BRAVO

Real Housewives marathon

First, watch The Real Housewives of New York City reruns from 8 a.m. to 2 p.m. Next, watch The Real Housewives of New Jersey reruns from 2 p.m. to 8 p.m. Then, watch a new episode of New Jersey. Finally, read an encyclopedia to get the blood flowing to your brain again.

Season 2 premiere, 10 p.m., ABC

True Beauty

In the Season 2 premiere, ten models start competing for the title of "The Face of Vegas" by posing in lighted glass cases on the Vegas strip—but they don't know they're actually entered in an inner beauty contest. Judges include Carson Kressley and Beth Ostrosky Stern.

10 a.m. to 7 p.m., TNT

Law and Order marathon

In case you're already going through withdrawal, TNT's got your back.

Also on the airwaves...
The Bachelorette, 8 p.m., ABC
Nurse Jackie, 10 p.m., SHO
Saving Grace, 10 p.m., TNT
United States of Tara, 10:30 p.m., SHO
MLB Baseball: Cubs v. Pirates
NHL Stanley Cup Finals: Blackhawks v. Flyers

What are you watching tonight?

---

Follow TV.com writer Stefanie Lee on Twitter: @StefAtTVDotCom