Here is the list of EE days. It doesn't change from month to month.
Sunday: MK
Monday: AK
Tuesday: MGM
Wednesday: Epcot
Thursday: MK
Friday: AK
Saturday: MGM
It is doubtful that they will have E ticket nights during January, as the attendence usually doesn't warrent it.
Also, Spectro and the fireworks have been showing on Saturday nights in the value season.
You might want to check the calender at Disneyworld.com to be sure!