The extensive interactive survey of deeply held beliefs and behavior patterns – conducted June 26–29, 2007, including 3,939 adults nationwide and carrying a margin of error of +/– 1.6 percentage points – shows that liberals were much more likely than conservatives to listen to commentary and entertainment with which they disagreed philosophically.
While 22% of conservatives said they “never” enjoy entertainment that reflects values other than their own, just 7% of liberals felt the same way. At the other end of the scale, just 11% of conservatives said they “very often” enjoyed programming that ran counter to their personal philosophies, compared to 20% of liberals and 18% of moderates who said the same thing.
Given a country that is closely divided along partisan lines, that may be enough to make all of the difference.
UPDATE: Also this tidbit: "Over 80% of liberals admit that they are entertained by material that’s in bad taste. Almost 40% of conservatives say they are never entertained by it."