series: suits .
and the most improved to me is listen audiobooks. in youtube you have alot of them
from all types you want
Find the genre which you are interested in, take the help of IMDB where you get the list of best TV series.
for sitcom go for big bang theory or how I met your mother
for science go for brain games or science of stupid
Action/thriller - Breaking bad or the blacklist etc..,
take the one with simple English and try to watch each episode twice
However, if you are looking for good series I’d recommend: Breaking Bad.