I watched the show. Here are my observations about the UFO Hunters methodology.
-------------------------------------
Claim: It was a single object
Despite having a bunch of videos available, the Hunters used a single video in this analysis. Judging from what was shown on the program a very brief
part of that video was used. By stabilizing the motion of one of the lights they reached the conclusion that the lights all moved in unison. There was
no indication in this analysis that is was not the camera that had rotated and with no other reference points, it was not possible to make that
determination. They could have compared the relative positions of the lights from the different videos they had at their disposal but they did not.
Some of the witnesses specifically stated that the lights changed configuration as they watched.
Conclusion is questionable.
---------------------------------------
Claim: The object was 1,500 feet across
The UFO Hunters calculated the altitude of the lights from a distance of 2.5 miles. They said the lights from that distance were quite low to the
horizon, about 5 to 10 degrees above it. Using 10 degrees, the altitude calculates to 2,327 feet.
Tinley Park is within the Class B airspace of O'hare Airport with a floor altitude of 3,600 feet. An aircraft on approach to Midway Airport (15 miles
away) would probably be higher than this, likely at about 5,000 to 6,000 feet. A departing aircraft would be much higher.
We have no way of knowing the altitude of that jet but unless it was flying unusually low (below 2,000 feet), it did not pass under the lights.
Without knowing the type of aircraft (to determine its wingspan) and its altitude, there is no way to determine the separation between the lights.
Not a valid conclusion.
-----------------------------------
Claim: According to the NWS the wind that night was blowing 30mph.
At 9:00 pm, within a 50 mile radius of Tinley, the surface windspeed varied from calm to 5mph. As expected with such windspeeds, the direction
varied quite a bit.
The closest upper air report available is from Lincoln, about 125 miles away. The 7:00 pm sounding showed windspeed at 2,265 feet to be from the NW at
9.19 knots.
Inaccurate data. Casting more doubt on the methodology.
-------------------------
My conclusion based on the light winds, descriptions and video of the lights, the fact that the siting on the 21st was the night of Ozfest and the
next was on Halloween. It was a probable prank carried out with either "Chinese sky lanterns" or LED's inside of balloons. The fact that the lights
appeared at the same time of year (when people are outside, enjoying the evening) on subsequent years bolsters this conclusion.