Shining bright lights on radio personalities is a dicey proposition—and not only because of the unforgiving precision of HD. Do you remember your bewilderment the first time you saw Ira Glass? If the adage of “a face fit for radio” is unnecessarily harsh, our imagination is often more palatable (and less distracting) than the actual face behind the microphone. Not the case, however, for A Prairie Home Companion, the quaintly retrograde variety show that has been warming the hearts of Lutheran-joke enthusiasts since the early ’70s. Watching avuncular host Garrison Keillor ramble while sound-effect extraordinaire Fred Newman pantomimes along with every honk and buzz only adds to the show’s ramshackle appeal. Though the DMV is spoiled by the show’s annual stop at Wolf Trap, tonight’s hometown performance in St. Paul, Minn., will be presented live in movie theaters across the country, offering the masses a unique opportunity to see Keillor’s famous red shoes in action.

THE PERFORMANCE STARTS AT 8 P.M. AT AMC MAZZA GALLERY, 5300 WISCONSIN AVE. NW. $22 (202) 537-9553.