All I can find is that there were a number of shows like Weeds (Actually called the Corn Snake” episode), Fear Factor, Navy NCIS and several others that featured Corn Snakes. The fact that many of these had original air dates well before you asked this question leads me to believe they were re-runs probably played late at night. I could not find a corn snake featured on a traditional late night program like Letterman or Leno. I’ll keep looking.