Hi! Thank you for watching Dark Shadows. The Monday-Friday programs were mostly structured in four 13-week cycles over a year, generating up to 260 episodes per year without any pre-emptions. However, during its run, Dark Shadows was pre-empted 20 times for various holiday and news events, including the moon landing in 1969 and the assassinations of Dr. Martin Luther King, Jr. and Robert Kennedy. Whenever these pre-emptions occurred, the next day's episode was listed with the duplicate number (Ex: Episode 130/131). Episode 108 was pre-empted twice, which accounts for its title: Episode 108/109/110. Hope this helps to clarify a bit! Thanks again for being a subscriber.