31.   At that distance with a tabletop set, it would be hard to tell the difference between HDTV and regular television.

32.   Be warned, though, that true chocolate lovers will be able to tell the difference in taste and appearance.

33.   Backers of the bill dispute that, pointing to tobacco industry studies that show that smokers cannot tell the difference.

34.   A human would be hard-pressed to tell the difference, but computers in a nearby trailer can.

35.   A long time ago, in the deep woods of New Hampshire, my sister showed me how to tell the difference between a fir and a spruce.

36.   A person would have to be intimately acquainted with various pelts to be able to tell the difference by touch alone.

37.   Actors can tell the difference between those who respect the written word and serve the material and those who set out to serve themselves.

38.   Actually, professional basketball players might notice that difference, but no tennis player here has claimed to tell the difference.

39.   After five years in the area, Anderson can tell the difference.

40.   But a growing body of evidence suggests it is the producers who may be having a hard time telling the difference between their apologist fantasy and grim reality.