Entertainment Weekly compiled a complete ranking of the 2004-2005 TV season in their june 10th issue. (pg 97 if you ever want to grab a quick peek at a bookstore or something) So, if you're wondering how Malcolm ranked this season:
The list goes from 1 to 156, number one being American Idol with 27.4 million viewers, and number 156 being "Big Man on Campus" (which I believe was some horrible reality show) with 1.7 million viewers. Malcolm ranked 103, with 5.6 million viewers. This is a 33% drop in viewership from last season, one of the highest drops on the list. Must be because of the schedule change and conflicts with football.
If you want to know where another show landed on the list, just let me know.