There are shades of Pygmalion for Higgins (John Hillerman) and Thomas (Tom Selleck) this week, in the episode Professor Jonathan Higgins, which was written by Jay Huguely from a story by Mary Lee Gaylor. This one originally aired on 10 January, 1985. Higgins is expecting his cousin Sally Ponting ( Jillie Mack) to arrive in preparation for her…