During the "Theatre Sketch", there are also lots of microphone shadows on the set.
During the "Theatre Sketch", Lucy's mustache keeps falling off and sometimes Ball and Kaye start to laugh, but it is in keeping with the premise of the sketch.
During Kaye's brief banter with John Gary, there is an offstage noise that Kaye quickly acknowledges.
During the "Theatre Sketch", Kaye slips and calls Lady Cecily Emily, but quickly corrects himself.