This week Ronald Chesney : 'The Show Must Go On,' featuring Carl Carlisle and Maisie Weldon with their ' guest ; star; Off the Liberty Boat ' —the Navy's own contribution: Naval Intelligence '-a quiz bee; 'Million-Airs '-songs which have sold a million, introduced by Marjorie Flinn ; Bennett and Williams; BBC Variety Orchestra, conducted by Charles Shadwell Introduced by ' Hubert,' and produced .by Charles Maxwell.