Do viewers watch programs they know are being canceled? Based on Dollhouse‘s ratings last night, probably not. The FOX drama returned this weekend to series-low ratings. Elsewhere, fans of Ugly Betty did their best to keep that ABC comedy from the chopping block.

8pm

• Ghost Whisperer (8.2 million, 1.9/7 in 18-49) had the best numbers of the night.
• Muppets Christmas: Letters To Santa (1.1/4) entertained 4.3 million for NBC.
• ABC’s Dreams Come True special (0.9/3) saw 3.7 million tune in.
• Dollhouse (0.8/3) averaged 2.1 million over two hours.
• Smallville* (1.8 million, 0.8/3) added on 200,000.

9pm

• Medium (1.8/5 in 18-49) nabbed 7 million.
• Dateline (1.5/5) pulled in 6.3 million.
• Ugly Betty (4.2 million, 1.2/4) improved by 800,000.
• Grandma Got Run Over by a Reindeer (0.7/2) had 2.2 million feeling festive on CW.

10pm

• Numb3rs (1.6/5 in 18-49) scored 7.4 million.
• 20/20 (5.7 million, 1.6/5) was off by 600,000.
• The Jay Leno Show (1.4/4) had 4.8 million laughing.

*denotes repeat

(You can review last Friday’s ratings here.)