Murphy appeared on the `` SNL '' Sunday 40th anniversary show . According to Norm Macdonald , Murphy 's return after 30 years to the show that made him famous was supposed to be so much more . Cosby said he tried to convince Norm Macdonald to play Murphy . He said Murphy refuses `` to kick a man when he 's down ''
Murphy appeared on the `` SNL '' Sunday 40th anniversary show . Cosby said he tried to convince Norm Macdonald to play Murphy . He said Murphy refuses `` to kick a man when he 's down ''