This is a bad news / good news tale.
That's the bad news. The good news is that it turns out that the entire event was recorded on video, and here it is below! So not only can everyone hear it, but you can all watch it. (If you choose to, of course...) I believe that the correct response is -- O huzzah!
It runs about 51 minutes and is hosted by Julie Mason, host of “The Press Pool” on SiriusXM’s POTUS Politics channel, and Bob Cusack, editor in chief of The Hill. The event is all quite enjoyable, and often pretty funny. It is largely serious, but even at that Franken is an engaging conversationalist -- however, there are also some light questions.
(As he notes, because he only won his first election by just 312 votes, he felt it important to show the people of Minnesota that he was a "work horse, not a show horse," and stuck to being a very serious during his first term. Having won his re-election by a much more comfortable margin, he says here that while he remains a hard worker, it's allowed him to let his humorous side out more.)
Again, this isn't a comedy monologue, it's a serious discussion. It's just a very enjoyable one. And it's at its best, for my taste, when the floor is opened up to questions from the audience around what seemed to be the 25-minute mark.