Blankety Blank Guest cast, played by Thora Hird Episode 2x16: Show 16 (Dec 20, 1979) Episode 8x14: Show 14 (Dec 6, 1985) Episode 9x16: Show 16 (Jan 30, 1987) Episode 10x10: Show 10 (Nov 20, 1987) Episode 12x21: Show 21 (Mar 12, 1990) Episode 13x11: Show 11 (Aug 15, 1998) Episode 14x02: Show 2 (Jul 3, 1999)