The announcement was made during the annual Syfy Digital Press Tour, taking place once again in Orlando, Fla. Earlier in the day, the channel announced it would be premiering all three of its Christmas specials on the same night. Holiday outings of "Eureka," "Haven" and "Warehouse 13" will air Dec. 6 beginning at 8 p.m. ET on Syfy.
"Haven" will do its first-ever holiday episode, where everyone in the New England town thinks it's Christmas, even though it's July. No one seems to notice that it's the wrong time of year except for Emily Rose's character of Audrey Parker. She has to work to try and set things right, especially when people start disappearing into thin air.
All three episodes will take place outside of the shows' continuity, meaning you will see things that you probably wouldn't be expecting after the shows' respective finales this year.
Source: Airlock Alpha