""Things Ain't What They Used to Be"" - a comedic look at modern life with Alan King, Lena Horne, Charles Nelson Reilly, Jerry Stiller and Anne Meara. Comedy: --Jerry Stiller and Anne Meara play (1) a couple having an argument during their visit to the top of a skyscraper construction site; (2) parents aggravated by their college drop-out son (played by Charles Nelson Reilly). --A patient (Alan King) suffering from back troubles visits an indifferent doctor (Charles Nelson Reilly) NBC repeated this show on April 28, 1971.