I think Jackie was a great asset to the show and wrote great lines for Howard. But, after hearing him on Gilbert's podcast today, I now understand why Robin and Fred were against him coming back after Artie left. He was insufferable. Every story he told that involved him made himself look like the hero- the person who invented something, or influenced someone to do something great. He said he used to take one of the joke notes he would pass to Howard during interviews, and have whatever celebrity guest was in at the time sign it. SO CLEARLY as passive aggressive way of saying "Don't be fooled. I'M the funny one". I don't know, I found him very off putting today.