Dabbler (in his role as Dr. Smurf) is holding an ill Jokey, but he is shown bare-chested and not wearing his doctor uniform.
In "Can't Smurf the Music," Chlorhydris brought her uncle's "horn" from her dusty cabinet as part of a spell to capture all the musical notes from the world. However, this horn is a saxophone, a musical instrument invented in the 19th century. The background of the Smurfs cartoon series is the late Middle Ages (14th-15th century), too early for the existence of saxophones.