TV speakers for the deaf?

I have been watching TV with the closed caption on for a few years now, I have no problem hearing comentators on racing or hockey but movies it is next to impossible to hear what they are saying. I like The Big Bang Theory but the girl Bernatete I can`t understand a single word out of her.
To buy hearing aids here in Canada I would have to sell my Duster and my Grandson to afford them.

I have trouble with both Bernedette and the guy from India..even with my sound bar.She sounds like screech ..screech and He might as well speak in his native language.