Brain Game: G-54
By BY

By changing one letter at a time to form different English words, and leaving all other letters in their original positions, convert BINGO into DISCO in the fewest steps possible. Good luck!
B I N G O _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ D I S C O
Here is a 8-step SOLUTION.
AN 8-STEP SOLUTION:
BINGO > DINGO > DINGS > RINGS > RINKS > RISKS > DISKS > DISCS > DISCO
Did you come up with a different or shorter sequence of words? Feel free to show off your work by commenting below.