Sense wouldn’t likely detect your AV electronics even without the Panamax, though there would be a chance for the TVs if they were late model Samsung or LGs smart TVs that give off the right network messaging for NDI to work.
Detecting distinct on and off signatures for electronic devices, especially ones that have high variability in patterns, is always going to be a challenge. I have my AV and networking clusters on HS300 smartplug plug strips to provide me with power usage data on those device clusters. That gives a good picture of what each individual device is doing, though roughly half of them are uninteresting.