That was a fun time. In the end the election result wasn't too different from where things stood at the start of the campaign. We are used to 'look I'm on the telly!' conference bounces that screw October polling, cause the sky to fall in and then things settle by the end of the season.
And, of course, 1974, 1983 and 1987 all saw Centre surges that probably didn't actually happen. Which makes me think: what's the usual pattern for post-debate polls in the U.S? Given that usual patterns are usual for a reason.