Wouldn't this be fun. For the one episode that the channel would tolerate we would witness jimmy Fallon attempt to not laugh throughout a show. Jimmy has a bad history of laughing at his own jokes, so imagine him trying to not laugh at a joke that he came up with merely seconds earlier, not even giving himself a chance to comprehend it. Then enters poor Chris walken. Chris thinks that this whole show has been scripted, and Chris has troubles remembering his lines in the first place (even with cue cards behind the scenes, see Catch me if you can) so picture him ready to do his thing when suddenly jimmy Fallon starts spewing out random gibberish mixed with his uncontrollable laughter (camera zooms in slowly as walkens jaw quivers in confusion). Although r/cringe would have a field day with this, it's undeniable that a good chuckle would come of it.