S1:E1 Green Means Go

"On-camera, Mr. Pickles is tender, wise and sweetly demented. In the pilot’s opening minutes, he sits on Conan O’Brien’s couch and strums a song about emotions — 'You can feel anything at all' — on 'Uku-Larry,' an anthropomorphic puppet-instrument. As the audience joins in, the weirdness and warmth is so well-realized you could believe that you too grew up watching his show."

"The Jill/Mr. Pickles interaction provides an interesting counterbalance to his earlier scene with Sebastian. Sebastian doesn’t want Mr. Pickles to do a show about grief; he insists that Jeff should deal with his own feelings off-air. Jill also presses Mr. Pickles to deal with his own grief, partly so he stops bothering her all the time. Neither Papa Pickles nor Jill Pickles recognizes that Mr. Pickles may be completely unable to deal with his feelings outside of his TV show."