If NBC doesn’t cancel Heroes after the end of this season, it would be the worst decision that network has made since….well, you know. Although some have claimed the show will return next year, the phrase “hit a series low” is constantly used when referencing the program. (Last night was no exception.) Yesterday’s episode even drew less viewers than The Jay Leno Show.

8pm

• A two-hour episode of 24 (3.4/8 in 18-49) averaged 11 million.
• The Bachelor (10.6 million, 3.8/9) did about the same as last week.
• How I Met Your Mother (10.5 million, 4.0/10) picked up 700,000.
• Accidentally on Purpose (9.6 million, 3.5/9) grew by 1.1 million.
• Chuck (6.7 million, 2.5/6) was down by 600,000.
• One Tree Hill (1.1/3) raised 2.2 million.

9pm

• Two and a Half Men (16.2 million, 5.3/12 in 18-49) had the largest audience of the night.
• The Big Bang Theory (15 million, 5.2/12) gave up 800,000.
• Heroes (3.9 million, 1.8/4) also dropped 800,000.
• The premiere of Life Unexpected (2.7 million, 1.2/3) did better than its lead-in.

10pm

• CSI: Miami (13.2 million, 3.6/10 in 18-49) fell by 500,000.
• Castle (9.4 million, 2.8/8) remained steady.
• The Jay Leno Show (4.6 million, 1.3/3) lost 200,000.

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