Identifying a single data point is attribution, not causality. There is no way for you to know of "contributions" from other variables. For example (being cheeky) one might say it was the lightning surge that "treated" the room or (being cheekier) your power cords. : )
You need to test and retest to be certain. And yes, that means putting the new TV back on the wall and removing it, and putting it back on. It’s wise, smart and educational to confirm or eliminate.
A "four" to "six or seven" jump (your measure) is a 50% to 75% jump in system performance.
You need to test and retest to be certain. And yes, that means putting the new TV back on the wall and removing it, and putting it back on. It’s wise, smart and educational to confirm or eliminate.
A "four" to "six or seven" jump (your measure) is a 50% to 75% jump in system performance.
If my stereo was a four on a scale of one to ten it suddenly became a six or seven without the TV present.