Great Scott!
- Episode aired Jul 31, 2017
- TV-PG
- 20m
A 1973 Marshall Amp; a hover-board from the movie, "Back to the Future Part II," signed by the cast.A 1973 Marshall Amp; a hover-board from the movie, "Back to the Future Part II," signed by the cast.A 1973 Marshall Amp; a hover-board from the movie, "Back to the Future Part II," signed by the cast.