Primetime Preview: The Final Semifinal Round

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. The third semifinal round of American Idol (Fox); the second season premiere of Reaper (The CW).
• 9:00 p.m. It's a funny rerun of Scrubs (ABC).
• 10 p.m. Yes, there's another The Bachelor: After the Final Rose. (ABC).