So just to review, what are the changes?

I'm counting:
1. Introductory videos have more snappy/humorous editing (like the Filharmonics having "the handsome one" and "group's Adam Levine")
2. Higher laugh track
3. Ben and Sean as mentors
4. Ultimate sing-off
5. No swan song
6. Judges cavorting with singers over the end credits
7. Possibly, there's an upper limit on group size, considering no groups have more than 12 people this year
8. Sara B. is replaced by Jewel


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