Why not? I think you just want to watch TV.
If you use subtitles, it really helps you to understand the meanings.
I used to use subtitles very often. Sometimes when you hear a word, you
don't know how do you spell it. Sometimes, you also can close subtiltles as well.
Relax! Just like when you watch chinese TV.
Don't push yourself too hard, or it won't work.
※ 引述《gp999999 (取名字很難)》之銘言：
: I am now enjoying watching American TV series.
: Not only can I have some fun but I can also learn English.
: But I am confused whether I should open subtitles or not?
: If I use subtitles, I can easily understand content of the dramas.
: But if I didn't, I can also practice listening.
: Should I use subtitles?