check out cs224d and cs231n (both stanford) , there's another course by university of waterloo https://uwaterloo.ca/data-science/deep-learning https://uwaterloo

check out cs224d and cs231n (both stanford) , there's another course by university of waterloo https://uwaterloo.ca/data-science/deep-learning https://uwaterloo.ca/data-science/deep-learning , you will find lecture videos for all on youtube