Arthur Loses His Marbles/Friday the 13th
Grandma Thora trains Arthur to play marbles better. Brain's bad luck makes him superstitious.
- Friday, October 13 from 8:00 a.m. - 8:30 a.m. on OPB KIDS
- Friday, October 13 from 9:30 p.m. - 10:00 p.m. on OPB KIDS
- Saturday, October 14 from 5:30 a.m. - 6:00 a.m. on OPB KIDS