Ratings Report: 90210 Celebrates Return of Donna

The return of Donna Martin helped 90210 show signs of ratings life last night.

A week after falling under the two-million-viewer mark, the series earned 2.1 million for its latest episode. It was the remake's largest audience in two months.

Among other primetime pickings:

• American Idol (23.5 million viewers) was up from a week ago.

• Dancing With the Stars (14.8 million) was also up. A rerun of The Mentalist likely helped.

• Fringe (11.5 million) is looking like an official hit.