Premise: Bam Margera . He came to prominence after appearing in MTV 's Jackass crew . He has since appeared in MTV 's Viva La Bam and Bam 's Unholy Union , all three Jackass movies , and Haggard and Minghags , both of which he co-wrote and directed . Jackass is an American reality series , originally shown on MTV from 2000 to 2002 , featuring people performing various dangerous , crude , self-injuring stunts and pranks .
Hypothesis: Bam Margera appeared on MTV's Jackass on April 20, 2010.
Label: CONTRADICTION