By the way, if you only see it on specific channels, then it may be those channels where you need to find a setting, because I believe that once a channel/app is running, it is pretty much fully in control of what you get.
I am very sorry @Strega2. I seem to have not understood what a community forum does. I thought I was dealing with Roku techs. I realize now you were just trying to help me and I appreciate your input. I am feeling the frustration of someone who cannot fix their problem - but do thank you for trying to help me.
I tried the things you suggested for my network issue, but I have an xfinity router, and they will not let me change the b/g/n settings. It said they are locked for optimal performance. 😞
I hope you have a great weekend, and thank you again for trying to help.
The condition that is called "Soap Opera Effect" (SOE) is not something that can be controlled by an external device. It is under the complete and sole control of the display. Different companies label the settings in different ways. On my LG, it's under the display settings labeled "TruMotion". The judder control needs to be turned all the way down, and the blur setting (on mine) is set to 4, which is one notch below mid-scale. I see nothing that would be considered the SOE.
There is nothing within the Roku player that can change any of these settings. There is nothing in a Roku player than can control the SOE seen on the display. Everything has to be done within the TV's display settings.
The only thing I can think of that MIGHT effect this is the "Settings > System > Advanced system Settings > Advanced display settings > Auto-adjust display refresh rate" item found on some Roku devices. I don't know if it is present on your model.
If this is enabled, the Roku circuitry sends the signal output at the refresh rate used by the original source material, commonly 24 fps (frames per second), 25 fps, 30 fps, 50 fps, or 60 fps, which would seem to be what you want. Every time the source refresh rate changes, the TV must adjust its display to accommodate the new rate, which on many sets results in a short blackout.
This can happen when starting/stopping new programs, and when going in/out of commercial breaks that have a different native frame rate than the programs they are inserted into.
If "Auto-adjust display refresh rate" is set OFF, or if your Roku does not have this setting, the Roku converts everything to 60 fps and the TV doesn't have to adjust on the fly.
The tradeoff here is that movement of things on the screen for non-60 fps sources may not be as smooth with no frame rate adjustment. You have to decide whether this change is worth it to you.