Johnny Mercer guest stars in "The Jingle" episode of the 1957 TV sitcom, "Those Whiting Girls," starring Margaret Whiting, Barbara Whiting and Mabel Albertson.
I just new that since Margaret had guest stars on her show that Johnny Mercer had to have been on at least one episode. I checked the synopsis of the episodes about 10 years ago and found out that he certainly was. A good friend in LA was able to track down this episode that had not been seen since summer of 1957!.