.
These two shows are being done "in Rep". That is the cast is alternating between the two plays..
Now normally this is done with two shows by the same author (often Shakespeare), or two different shows about the same topic - even if they are only tenuously related - like 2 shows on different aspects of love.
.
But Macbeth - a Shakespearian tragedy - and A Connecticut Yankee in King Arthur's Court - a Mark Twain comedy best known from its Bing Crosby sing-along version?
.
That is some twisted "in rep" thinking.