Audio problem with my TV

Hello everyone,

I am posting here because I cannot find an answer anywhere on the internet. I live in Canada and I just received a new Helico HD decoder from Videotron. I connected it to my 48'' HDTV and everything works fine, audio/video is perfect. However, before getting the new HD decoder, my decoder was connected to a second television, a much smaller CTR (cathode) TV. Therefore, when watching a show in my room (48'' HDTV) I could also watch it in the kitchen (CTR TV).

Now, the problem is quite simple: there is no sound on the CTR TV... The video quality is perfect, but no sound whatsoever.

Is there a way that I can get the sound to work on my second TV?

Thanks a lot for your help if ever you know something!
 
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