Start worrying. Last night's excellent episode of Community was watched by only 4.29 million viewers last night, a mere 90,000 more than tuned in for a repeat of Grey's Anatomy on ABC at 8 p.m. In the coveted 18-49 demographic, Community fell from a 1.9 rating to a 1.7; for reference, the tumbling Outsourced pulled in a 2.5 rating in that same demo. Yikes. [TV by the Numbers]