Is there a way to simulate "surround" sound for sports?

[T.Anders]

Using my ATV and Denon X3700H, whenever I set the ATV to use Atmos or "best available" it always defaults to Stereo mode when using the AT&T TV Now app. it also defaults to stereo using the MLB.tv app as well. Is there a way to simulate surround in the receiver without having to force the ATV into 5.1 every time I want to watch TV, and then back to Atmos when we are watching movies?

 

[lovinthehd]

My older Denon(s) switch to the native format for what is playing, per input, and remember it. It wouldn't know the particular subject matter, just whether it's say 2.0 or a Dolby Digital or Dolby Digital + 5.1 signal, etc; it can also remember if I use a non-native sound mode. I usually set the input on the avr that has my video streaming/tv needs (the media player input via fire stick) to play 2.0 (stereo) content to upmix via Dolby Prologic II (I have a slightly older Denon so no Dolby Surround ). When it gets a stream with Dolby Digital + in 5.1 it will remember my sound mode preference for that codec. The avr remembers that I want upmixed or not until I change it again....I think yours probably still has that feature.

There are also some quick buttons you can program for specific setups I believe, think that feature has remained as well.

 

[Trebdp83]

Leave the Apple TV in best available(converts to PCM) with atmos available on. It will send everything over as PCM with the Dolby light going on only with atmos tracks. For different surround modes, press the "MOVIE" button in the SOUND MODE selections at the bottom of the Denon remote control to switch processing options. Try Multi In + Dolby Surround or Multi In + DTS Neural:X to get surround sound from the AT&T and MLB apps and see which one works for you.