Original sentence: His defenders claim that because Limbaugh talks unscripted for fifteen broadcast hours a week the number of alleged factual errors is, under the circumstances, very small
Edited sentence: His defenders claim that because Limbaugh talks unscripted for five broadcast hours a week the number of alleged factual errors is, under the circumstances, very small.However, as author Al Franken and others have pointed out, Limbaugh has never explained what the intended punchline to this joke was supposed to be