Season 20, episode 143
Mark Rober, Demi Lovato, “Science Bob” Pflugfelder
- 45 min
Guest host Mark Rober welcomes an interview with and musical performance by Demi Lovato, and educator “Science Bob” Pflugfelder.
Season 20, episode 143
Guest host Mark Rober welcomes an interview with and musical performance by Demi Lovato, and educator “Science Bob” Pflugfelder.