The show premiered as a 60-minute special in March 2019, with Buerk challenging celebrities Gok Wan, Joey Essex, and Valerie Singleton to study unlikely specialist subjects using memory hacks, before testing them on their new-found knowledge.
Avalon, the producer of Taskmaster and Last Week Tonight With John Oliver, will now make a four-part series for next year, with Toksvig in the driving seat and a new group of stars competing across knockout episodes to be crowned the memory champion.
Can I Improve My Memory? is executive produced by Jamie Isaacs and series produced by Alice Wheater. Tim Hancock and Sarah Lazenby commissioned the series for Channel 4.
Toksvig is growing her slate of Channel 4 shows after leaving the Bake Off tent earlier this year.