Subscribe to Channel 4 for more:
Check out all the best bits when Roisin Conaty messes up on 8 Out of 10 Cats Does Countdown, part 1! (We had too much footage for just one video...)
Watch full episodes on All 4:
#CatsCountdown #8OutOf10Cats #RoisinConaty #MessesUp #8OutOf10CatsDoesCountdown #8OO10CDC #Channel4 #Trending #All4