Emporium: thank you for all the great ideas. I may have hit on a possible source for my bt audio issue - a sound bar hooked to the tv. The soundbar sits in front of the tv, the buzztv sits beside the tv, about .5 feet away from the soundbar. I nudged the soundbar down about 3" and the audio stuttering dissipated. I swapped the buzztv box to the other side of the tv and as far away as the hdmi cable would reach, which got it about 2' away from the soundbar: the audio quality dramatically improved. There was a little audio stuttering later on, but, it was in, then out and did not come back.
The soundbar seems to be the source of my audio issues - at least I'm hoping that cures my bt audio issue.
You raise a good issue that I've been considering lately - is Kodi necessary to play my video content? I started with Kodi back at least a decade ago and it met all my needs for playing video. I like one app that can traverse through all the folders on my synology video nas and play practically any video format. I've not really ventured out to review other video players (Plex, VLC, etc.) because I did not have to, Kodi has served me well all these years. Perhaps there is another video player that will work just as well that I should be using. I have tried VLC several times, it seems to be solid, perhaps I'll switch things over to VLC.
We are in a rural area, so our internet download speeds are atrociously slow compared to speeds seen in more suburban and urban areas. We are a captive customer to the only source of internet, so they have no incentive to improve their systems. With T-Mobile and Verizon pushing their Home 5G Internet offerings, we are starting to see options that can get us 100 mbps speeds for only $60 per month. Until those services get in our area, we're stuck with low speed internet - ~ 10 mbps, which drives me to not wanting to stream - it results in constant buffering. Kodi makes a decent streaming offering, but, I don't need the streaming, so perhaps I just need a good video player. I will have to start experimenting with what's out there in the video player arena.
The BT speakers are located about 20' away from the tv, not much distance and clear line-of-sight with no obstacles.