Here's why:
* "Impractical Jokers: Dirty Little Secrets" is a special episode that aired on December 18, 2013, as part of the show's regular season. It's not a separate series or a set of episodes.
* "The Alliance" refers to a group of four friends who formed the core of the Impractical Jokers: Sal Vulcano, Joe Gatto, James "Murr" Murray, and Brian "Q" Quinn. They've been together since their college days.
* Episodes 1-4 would refer to the first four episodes of the first season of Impractical Jokers.
If you're looking for the release dates for the first four episodes of Impractical Jokers, they aired as follows:
* Episode 1: December 15, 2011
* Episode 2: December 22, 2011
* Episode 3: December 29, 2011
* Episode 4: January 5, 2012
To summarize: The phrase "Impractical Jokers Dirty Little Secrets - 2013 The Alliance 1-4" combines elements that don't belong together and doesn't accurately reflect any official release.