Air date: 2017-12-29

Runtime: 37 min

Bill visits a cannabis dispensary in Hollywood and takes a trip through hemp history. Kevin Smith and other panelists weigh weed's pros and cons.

Air date: 2017-12-29

Runtime: 36 min

From phishing to malware, Bill uncovers the scams that steal our data. Steve-O talks about the time he exposed himself … to hackers.

Air date: 2017-12-29

Runtime: 31 min

In search of better sleep, correspondents seek out NASA scientists and a professional cuddler. Bill busts myths about naps, dreams and turkey.

Air date: 2017-12-29

Runtime: 36 min

Bill spreads bad news about antibiotic-resistant gonorrhea and other superbugs. Comedian Ali Wong stops by the studio for a glow-in-the-dark demo.

Air date: 2017-12-29

Runtime: 38 min

OK Go and Drew Carey help Bill explain extinction, and the panel reveals how scientists could one day bring extinct species back to life.

Air date: 2017-12-29

Runtime: 38 min

Bill breaks down the science of time travel with guests Zach Braff, retired astronaut Scott Kelly and the minds behind "Star Trek" and "Lost."