8 a.m. to 9 p.m., A&E;
Intervention marathonGet yourself into a great mood with 13 straight hours of Intervention repeats—and then a new episode at 9 p.m.
8 p.m., ABC FamilyShailene Woodley) bumps into Bristol Palin (who's guest-starring as herself) in the dorms and realizes that the new music program she's enrolled in is for teen moms. Back at home, a rumor about Amy spreads through school.
10 p.m., A&E;
10 p.m., MTVAmber Lancaster) asks RJ (Paul Iacono) to study with her. Bow-chicka-wow-wow.
Season 7 premiere, 10 p.m., TRAVEL
Also on the airwaves...
Cake Boss marathon, 6 a.m. to 10 p.m., TLC
Law and Order: Criminal Intent marathon, 6 a.m. to 6 p.m., USA
Law and Order marathon, 10 a.m. to 8 p.m., TNT
The Bachelorette, 8 p.m., ABC
Persons Unknown, 8 p.m., NBC
Last Comic Standing, 9 p.m., NBC
Huge, 9 p.m., ABC Family
True Beauty, 10 p.m., ABC
Make It or Break It, 10 p.m., ABC Family
Kourtney and Khloe Take Miami, 10 p.m., E!
Dance Your Ass Off, 10 p.m., OXYGEN
Neighbors from Hell, 10 p.m., TBS
Holly’s World, 10:30 p.m., E!
Warren the Ape, 10:30 p.m., MTV
MLB Baseball: Braves v. Phillies
Cycling: Tour de France, Stage 2
What are you watching tonight?
Follow TV.com writer Stefanie Lee on Twitter: @StefAtTVDotCom