Can I Improve My Memory? Main cast, played by Sandi Toksvig Episode 2021-07-15: Episode 1 (Jul 15, 2021) Episode 2021-07-22: Episode 2 (Jul 22, 2021) Episode 2021-07-29: Episode 3 (Jul 29, 2021) Episode 2021-08-05: Episode 4 (Aug 5, 2021)