One thing that's occured to me is that Seasons 33 and 34 were the only seasons that included an additional street scene of sorts during the entire hour, as opposed to just one singular, continuous street story to start with; in Season 33's case, it had a cold open after the opening theme that was either a random song or game, or something of a teaser for the main street plot that would follow afterward, and in Season 34's case, there was a mid-episode scene that would basically follow-up the previous main street story.