We all know the modern complaint: movie sound sucks now unless you have a high-end sound system. Frantically turning down the volume after turning it up to hear the dialogue only to need to turn it up again can be frustrating. Now, this doesn’t solve the underlying problem, but why not have a “Volume A” and “Volume B” you can easily set and toggle between with the simple press of a button?
I’ve had that thought for decades, like they do (or used to) do a button to switch between the last channel. So you’d go to each channel and flip at a commercial. Then forget to switch back so you saw two half episodes but that’s not really an issue with a volume setting.