Some people see the new year as a time to make positive changes to their bodies, their minds, and their bank accounts. Me, I see Jan. 1 as an end to the heinous glut of reruns on network TV, and the start of a second season that brings scads of premieres. Last night brought the first episode of ABC’s not-quite-riveting In Justice, plus VH1’s Flavor of Love, the Flavor Flav dating series that I absolutely refuse to watch.

Here’s some other new and returning shows to keep an eye on this week:

Monday, Jan. 2

Rollergirls (A&E, 10-11 p.m.) For what it’s worth, Katie Couric sheepishly donned skates and a helmet this morning on Today to interview four of the cast members of this reality series about a Texas women’s roller-derby league, brought to you by the producers of Laguna Beach.

Tuesday, Jan. 3

Psycho Fear Factor (NBC 8-9 p.m.) Grab a hanky: The mother of feel-good reality programming raises the emotional stakes by forcing players to shack up in the Bates Motel.

Scrubs (NBC, 9-10 p.m.) Hey! How come this isn’t part of NBC’s new Thursday comedy block?

Thursday, Jan. 5

Dancing With the Stars (ABC, 8-10 p.m.) Some folks are excited about seeing Lisa Rinna, Master P, and birthday girl Tia Carrere do the rhumba, but I’m just praying the gloriously cheesy house band releases a soundtrack with its covers of ”Toxic” and ”Bailamos.”

Four Kings (NBC, 8:30-9 p.m.) NBC returns to its traditional two-hour Thursday-night comedy block. Let’s just hope this new kid doesn’t continue the trend of 8:30 stinkers like Jesse, Union Square, and The Single Guy.

Friday, Jan. 6

Stargate: SG-1, Stargate Atlantis, and Battlestar Galactica (SCI FI, 8-11 p.m.) Even if you’ve never been to a comic book convention or you don’t own a season of any Star Trek incarnation on DVD, I’m going to have to insist you tune in to the brilliant Battlestar Galactica (pictured), then share in my irritation that the gripping futuristic drama never gets Emmy or Golden Globe love. (You can also catch a crush on Katee Sackhoff, while you’re at it.)
– The Book of Daniel (NBC, 9-11 p.m.) Find out for yourself why the American Family Association is in a huff.

Okay, PopWatchers, clearly I’m most excited about Battlestar‘s return. Which new or returning series are you most likely to catch this week?