Season 0 of Blankety Blank premiered on April 1, 1978.

Season 1 of Blankety Blank premiered on January 18, 1979.

Season 2 of Blankety Blank premiered on September 6, 1979.

Season 3 of Blankety Blank premiered on September 4, 1980.

Season 4 of Blankety Blank premiered on September 3, 1981.

Season 5 of Blankety Blank premiered on September 4, 1982.

Season 6 of Blankety Blank premiered on September 3, 1983.

Season 7 of Blankety Blank premiered on September 7, 1984.

Season 8 of Blankety Blank premiered on January 11, 1985.

Season 9 of Blankety Blank premiered on September 6, 1985.

Season 10 of Blankety Blank premiered on September 5, 1986.

Season 11 of Blankety Blank premiered on September 18, 1987.

Season 12 of Blankety Blank premiered on September 9, 1988.

Season 13 of Blankety Blank premiered on September 7, 1989.

Season 14 of Blankety Blank premiered on December 26, 1997.

Season 15 of Blankety Blank premiered on June 26, 1999.

Season 16 of Blankety Blank premiered on January 7, 2001.

Season 17 of Blankety Blank premiered on May 4, 2002.

With falling ratings and the last episodes shelved by ITV, the series went off the air for over a decade. The unaired final episodes eventually premiered on the Freeview channel Challenge in August 2005, while the show itself received a reboot in 2021 with Bradley Walsh.