David Walliams applauded for heartwarming gesture to teachers in lockdown The BGT star is a popular children's book author January 10, 2021 - 15:07 GMT Nichola Murphy Britain's Got Talent's David Walliams delighted fans by revealing the sweet way he is helping children learn during the third COVID-19 lockdown. David Walliams has unveiled the heartwarming way he is helping children learn during the third coronavirus lockdown. With more school closures, children are once again forced to learn remotely – a challenge that has been keenly felt by both parents and teachers. But Britain's Got Talent judge David told his Twitter followers that many teachers have reached out to him for help during this difficult time.