Check your start times for My Name is Earl on 5/11/2006. My guide is showing it to start at 8:40pm, which causes a conflict if I try to record the final The 70's Show (due to prior conflict with Survivor in the same time slot).
As noted in the thread about the X-men 3 trailer, lots of schedule juggling going on for 5-11-2006 (Thursday)
Be prepared and check your to-do lists to make sure you're getting what you want. (And thank gawd for multiple DirecTV with Tivo PVRs and dual tuners to catch such things