我想問悲傷戀歌係ＹＯＵＴＵＢＥ點尋找?

yes, just type the words that you want to search inside the search box at the top of the webpage and enter... you will get the result. This is the search result for 悲傷戀歌 :
http://youtube.com/results?search_query=%E6%82%B2%E5%82%B7%E6%88%80%E6%AD%8C&search=Search
If you want to see the drama, they are not uploaded in youtube but you may find the full version here:
土豆網: http://www.tudou.com/playlist/id/132347/
or http://blog.xuite.net/nell.pl/nell/10396985

在youtube的搜索攔上打悲傷戀歌就可以了。*^*