Great questions here @philipp.eierund!
In our research, the consumption profiles of televisions, amplifiers, and powered speakers vary quite a bit depending on how they’re being used, the dynamic range of program material being viewed or listened to, etc.
For example: consumption by a television can change depending on how bright or dark the image is. Consumption of a sound bar, amplifier, or powered speaker can change depending on how loud or soft the sound is, etc. The 58 watts you observed in your unknown bubble, was this constant throughout the duration of a television program, or just at the point of turning on the television and sound bar? Did the Power Meter view show fluctuations in consumption over time?
We’ve been working with NDI (Network Device Identification) to help discern when connected devices turn on or off depending on their Wi-Fi status, and then correlate that information to power consumption. We do have strong models developed for the Samsung televisions that @johndellarciprete mentioned, and are continuing to add more NDI based models over time. What brand/model of television are you using in this case? @aalyar - what kind of LED TVs are you using?
To your related question about the devices that turn on/off together, it’s a bit hard to tell quite yet. The challenges mentioned above still apply, but it’s possible that despite getting a single “on” or “off” message from your Harmony hub, each device powers up in a slightly different way, so they might be recognized distinctly in the future. However, there’s a good change that a model could get confused because the exact same on/off sequence occurs every time, and that sequence will look uniquely different from any models currently available for televisions, receivers, or powered subwoofers. These kinds of use cases will become more manageable over time for Sense, but your continued monitoring via the Power Meter view in the app will likely be the most accurate way to keep an eye on how much these devices use.
Sorry for any disappointment for you. We’ll keep working on new solutions to make this better!