The show was absolutely brilliant, really top class. Just felt totally like The Muppet Show "Live".
No Rizzo, even though they had been saying on his social media he was there. The main muppeteers were Bill, Dave, Eric, Matt and Peter. Mike Quinn and Ryan Dillon were among the supporting cast.
A good chunk of the show was new and different to the Hollywood Bowl but yes quite a lot was either repeated exactly or tweaked slightly and the script around it was more or less the same with Kermit & Scooter - I don't want to spoil it for anyone with too much detail but there is a lot of British themed content - musical numbers, sketches (Pigs In Space/Doctor Who crossover), and some of the Mupfronts viral videos were takes on current British TV shows. The Electric Mayhem's animated graphics were all British landmarks and symbols.
Bobby Moynihan is indeed the guest host which is strange as few people in the UK have any idea who he is and just felt a bit out of place when you had Kylie and David Tennant there who are way more familiar to people.
Kylie didn't do Especially For You with Kermit as most people had been assuming, she did Mahna Mahna and Rainbow Connection. Charles Dance danced with Pepe, Kevin Bishop did a sketch with the Swedish Chef but they never referenced MTI at all. The parade of obscure characters had a few different surprises than the Hollywood Bowl.