CBS-has My Name Is Earl canceled long-running Sunday night military action-drama "The Unit" and NBC is putting an end to Thursday night comedy mainstay "My Name Is Earl" and thriller "Medium." The moves come after late-in-the-game saves for relatively new fan favorites like NBC's "Chuck" and Fox's "Dollhouse,"
Both "Earl" and "The Unit" ran four seasons; "Medium" for five. "Earl" averaged 4.5 million viewers and a 1.7 adult demo rating this season; "The Unit" pulled 9.6 million viewers and a 2.4 rating; "Medium" had 7.2 million viewers and a 2.2
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