Subwoofer don't work when I'm watching TV but it's working when I test it

[Cody Epling]

Sony str-dh550 subwoofer works when I test it but not while watching TV

 

[Calvin7]

And how do you test it without watching TV?

 

[jsmithepa]

Then TV program is not broadcasting surround, or audio system is not configured for subwoofer YES.

Those are only guesses because we have no idea, no did you disclose any other pertinent information.