According to the summary of Episode 37 found on the University of Pittsburgh Library's online catalog, Mister Rogers "talks about how he is sometimes angered by Mr. McFeely's smoking." Mr. McFeely does indeed appear in this episode and the rest of the description from the Pitt library is accurate; however, there is nothing in the episode that suggests that Mr. McFeely is a smoker. According to a reliable source from the Fred Rogers Company, Mr. McFeely never smoked and no mention was ever made of him smoking, this was clearly something added (for whatever reason) by the person documenting this episode at Pitt, and (according to Pitt) this information is part of a permanent database and cannot be edited.