Primetime Preview: New Episodes of Gossip Girl, Heroes and More

What should you set your TiVo for tonight? And what should you say Ti-NO to?

Our staff combs through this evening's television listings and helps readers set their viewing schedules:

• 8 p.m. We missed you: Gossip Girl is new again (The CW); Let's all go Dancing with the Stars (ABC)
• 8: 30 p.m. Don't miss Barney's latest one-liner on How I Met Your Mother (NBC)
• 9:00 p.m. We hope this week's Heroes makes more sense than last week's episode (NBC); Some people like Two and a Half Men for some reason (CBS)
• 10 p.m. The series premiere of My Own Worst Enemy (NBC); An all-new episode of Boston Legal (NBC)

Cat fight alert! Blair and Serena have it out on tonight's Gossip Girl episode.

Avoid at all costs: Worst Week (9:30 p.m. on CBS). More like Worst Sitcom!