View Full Version : How do I get surround sound from broadcast TV?


dhalsim2
04-10-07, 01:46 PM
Pardon my ignorance. I'm a complete newbie compared to people around here. I searched for an answer to my question for a long time, but couldn't find any other threads on it.

My question is:

How do I get surround sound from broadcast TV? I just got my first home theater system for Christmas. It's an ONKYO HTS-790 7.1 system. I know that several TV shows, like The Simpsons, are said to be available in surround sound, but my receiver never kicks into any surround sound mode. It stays in stereo. I use a roof-top antenna with excellent reception. The coax cable is plugged into my VCR and the VCR goes to my receiver. Am I supposed to plug the coax from the roof directly into my receiver? If so, would that be where the FM antenna is now?

Kal Rubinson
04-10-07, 02:00 PM
If you do not have an HD tuner with digital audio, you cannot receive multichannel. The tuner in your VCR is, apparently, not suitable for that.

dhalsim2
04-10-07, 02:17 PM
So a home theater receiver won't have any kind of tuner other than AM/FM radio, right?

Kal Rubinson
04-10-07, 02:19 PM
So a home theater receiver won't have any kind of tuner other than AM/FM radio, right?Right. You need a suitable TV/video tuner (like the one in your AVR) but it will have to be an HD tuner since most SD broadcasts are in stereo, only.

Ratman
04-10-07, 03:07 PM
Well... do you have the VCR connected to the audio receiver using both Red/White audio cables?

Does your VCR support MTS Stereo?
You TV's internal tuner probably does (with a 99% probability). That should also be connected to the A/V receiver using red/white audio cables (to the A/V receiver).

As long as both the VCR's tuner and the TV's tuner support MTS stereo, your A/V receiver should be able to provide Dolby Pro-Logic, which is "surround sound" (as close as you can get to Dolby Digital using analog connections).

dhalsim2
04-11-07, 06:06 PM
I _do_ have the VCR connected to the receiver with both red and white composite cables. I verified that my VCR supports MTS, but in the manual only talks about SAP with MTS. It doesn't mention surround sound or Dolby Pro-Logic.

I couldn't verify whether my TV supports MTS, but I don't think it should matter since I'm just using my TV as a monitor. I don't use its tuner nor its sound.

Targus
04-11-07, 06:10 PM
I verified that my VCR supports MTS, but in the manual only talks about SAP with MTS. It doesn't mention surround sound or Dolby Pro-Logic.


Surround sound can be encoded into a stereo signal, you use a pro-logic decoder to extract the information. there's no need for a VCR manufacturer to mention this.

Ratman
04-11-07, 06:45 PM
Try plugging the antenna coax directly into the TV (instead of through the VCR) and run the red/white audio cables from the TV's audio outputs to the A/V receiver and see what happens.

If that doesn't work, check your A/V receiver's manual for setup/selection instructions for Dolby Pro-Logic.