I noticed that for Sesame Street before, too. Around the mid to late 90's (when they still showed occasional 70's clips) I thought it'd be fun to use close captioning on classic clips and see how they did the words. I was surprised to see how condensed it was. Like I remember for the classic NewsFlash of "The tortoise and the hare", when Kermit crosses the finish line the announcer said, "The winner of the race is .... Kermit the Frog!" Yet, for the close captioning the line used was simply, "The frog wins!" I, too, wondered if it was laziness as to why they condensed and simplified so many lines. I haven't really used close captioning on too many other things, but when I have I think they always have used almost precisely the actual lines spoken. I was wondering if it's because it's a kid's program and they figure kids aren't going to notice or object (whereas close captioning for a movie or sitcom that leaves out a ton of words might receive significant complaints).