The improv troupe Last Call Cleveland has put together a series of “yule-themed sketches, songs and videos” for tonight’s program, Last Call Cleveland Saves Christmas Featuring Last Call Cleveland and Friends. The premise is this: Cleveland in Christmas is under a severe threat and must be saved. Last Call Cleveland must rise to the occasion. The show starts at 8 tonight and Saturday night at Mahall’s and tickets are $10 in advance and $12 at the door. (Niesel)