Billboard full page ads
November 19, 1977 and February 4, 1978.
March 11, 1978 and April 22, 1978
September 27, 1980.
February 14, 1981 and February 26, 1981.
July 10, 1982 and November 9, 1985
February 11, 1989 and May 11, 1991
January 9, 1993 and October 9, 1993
October 1, 1994 and October 29, 1994
March 12, 1994 and April 29, 1995
May 4, 1996 and March 22, 2003
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