Question: Blankety Blanks was hosted by an entertainer who was often called what?

Context paragraphs:
Urn: An urn is a vase, often with a cover, that usually has a somehat narrowed neck above a rounded body and a footed pedestal.  Describing a vessel as an "urn", as opposed to a vase or other terms, generally reflects its use rather than any particular shape or origin.  The term is especially often used for funerary urns, vessels used in burials, either to hold the cremated ashes or as grave goods, but is used in many other contexts; in catering large vessels for serving tea or coffee are often called "tea-urns", even when they are metal cylinders of purely functional design.  Large sculpted vases are often called urns, whether placed outdoors, in gardens or as architectural ornaments on buildings, or kept inside.

Graham Kennedy: Graham Cyril Kennedy AO (15 February 1934 – 25 May 2005) was an Australian entertainer and variety performer, as well as a personality and star of radio, theatre, television and film.  He was often called "Gra Gra" (pronounced "gray-gray").  Honoured as an Officer of the Order of Australia, he was a six-time recipient of the Gold Logie, including the Logie Hall of Fame award, and won the Star of the Year Award in 1959.  He is the most awarded star of Australian television.  He was often referred to as "The King" or the "King of Australian television".  He was best known for his collaborations with Australian entertainer Bert Newton and United States-Australian showbiz personality Don Lane.

Oriental studies: Oriental studies is the academic field of study that embraces Near Eastern and Far Eastern societies and cultures, languages, peoples, history and archaeology; in recent years the subject has often been turned into the newer terms of Asian studies and Middle Eastern studies.  Traditional Oriental studies in Europe is today generally focused on the discipline of Islamic studies, while the study of China, especially traditional China, is often called Sinology and the study of East Asia, especially in the United States, is often called East Asian studies.

Analytical balance: An analytical balance (often called a "lab balance") is a class of balance designed to measure small mass in the sub-milligram range.  The measuring pan of an analytical balance (0.1 mg or better) is inside a transparent enclosure with doors so that dust does not collect and so any air currents in the room do not affect the balance's operation.  This enclosure is often called a draft shield.  The use of a mechanically vented balance safety enclosure, which has uniquely designed acrylic airfoils, allows a smooth turbulence-free airflow that prevents balance fluctuation and the measure of mass down to 1 μg without fluctuations or loss of product.  Also, the sample must be at room temperature to prevent natural convection from forming air currents inside the enclosure from causing an error in reading.  Single pan mechanical substitution balance maintains consistent response throughout the useful capacity is achieved by maintaining a constant load on the balance beam, thus the fulcrum, by subtracting mass on the same side of the beam to which the sample is added.

Blankety Blanks (U.S. game show): Blankety Blanks is an American game show that aired on ABC from April 21 to June 27, 1975.  This Bob Stewart Production starred Bill Cullen as its host with Bob Clayton announcing.

Lexicographical order: In mathematics, the lexicographic or lexicographical order (also known as lexical order, dictionary order, alphabetical order or lexicographic(al) product) is a generalization of the way the alphabetical order of words is based on the alphabetical order of their component letters.  This generalization consists primarily in defining a total order over the sequences (often called words in computer science) of elements of a finite totally ordered set, often called alphabet.

Reg Grundy: Reginald Roy "Reg" Grundy {'1': ", '2': ", '3': ", '4': "} (4 August 1923 – 6 May 2016) was an Australian entrepreneur and media mogul, one of the pioneers and most successful of his generation, best known for his numerous television productions.  He was the creator of game shows such as "Blankety Blanks" and "Wheel of Fortune", before later diversifying into soap operas and serials including "Prisoner", "The Young Doctors", "Sons and Daughters" and "Neighbours", which was inducted into the Logie Hall of Fame in 2005.

Blankety Blanks (Australian game show): Blankety Blanks is an Australian game show based on the American game show "Match Game".  It was hosted by Graham Kennedy on Network Ten from 1977–1978.

Blankety Blank: Blankety Blank (later called Lily Savage's Blankety Blank) is a British comedy game show based on the 1977–79 Australian game show "Blankety Blanks" (which was in turn based on the American game show "Match Game").

Gymnocalycium mihanovichii: Gymnocalycium mihanovichii, often called chin cactus, is a species of cactus from South America commonly grown as a houseplant.  The most popular cultivars are varied mutants which completely lack chlorophyll, exposing the red, orange or yellow pigmentation.  These cultivars are often called "moon cactus".  Since chlorophyll is necessary for photosynthesis, these mutations die as seedlings unless grafted onto another cactus with normal chlorophyll.

Supporting paragraphs: Blankety Blanks (Australian game show) Graham Kennedy
Answer: Gra Gra