Judy Greer guests. Also: Sarah Lee Guthrie and Johnny Irion perform; "TripTank" is spotlighted.Judy Greer guests. Also: Sarah Lee Guthrie and Johnny Irion perform; "TripTank" is spotlighted.Judy Greer guests. Also: Sarah Lee Guthrie and Johnny Irion perform; "TripTank" is spotlighted.