I hardly watch tv shows … but i’m pretty sure you’ll have to name them to something simpler for the TVDB
eg. The Flash S01E01.mkv
Also be aware, metadata for tv shows … specifically the scrapped Thumbnails cause massive navigation slowdown
for more info and explanation … click these links below
http://community.wd.com/t5/WD-TV-Live-Streaming/So-slow-when-using-local-stoarge/td-p/805033