Don't know the brands or models of your t.v. and dvd/stereo.
We have a Toshiba t.v. and a Jensen dvd. The Toshiba has terrible, tinny sounding audio, but the jensen's audio, through the overhead speakers is really good.
The Toshiba only has digital audio output and the Jensen only has analog audio on the aux. input.
My DS gave me a digital to analog audio converter that works really well and now we can listen to the t.v. through the Jensen's overhead speakers.
Only downside is the converter requires 120ac and we have to control the volume with the Jensen's remote.
Hope this is of some help. (the DS bought the converter online through TigerDirect)