71.   The shows do not start or end precisely on the half-hour, so that children are less likely to change channels in between them.

72.   The Sony unit changed channels faster and scrolled more quickly through the programming guide.

73.   The temptation is to change channels, but that does no good, since as the election approaches political ads show up all over the dial.

74.   Then pick up the remote control and change the channel.

75.   Then she would change the channel.

76.   They asked the proprietor if they could change the channel to watch the Masters.

77.   They beg you to change the channel.

78.   This generally is a long hike, but high water last February changed the channel of the river and cut off much of the trail.

79.   They jeered when Mike Greenwell changed channels between the seventh and eighth innings.

80.   This is rather like watching your spouse change television channels with the remote control.