This is an excellent analysis that does a good job controlling for several variables that are usually ignored in "TV ratings" comparisons.
Well, it does a good job of refuting the Stewart Mandel hit piece that came out on 7/27 which was designed to support ESPN's (alleged) efforts to lowball the Big 12 schools into precipitously jumping to the AAC in furtherance of their (alleged) agenda to utterly destroy the Big 12 and not have to pay their obligations pursuant to the Telecast Agreements. Mandel's cherry picked data from just 2 years that magically eliminated the TCU-Ohio State game that drew very high ratings was deliberately obfuscatory and misleading.
But this article has flaws as well. It also omits the Buckeye game, which that other study concluded that made TCU 24th best and higher than all Pac 12 teams other than USC. And omitting it very conveniently left Baylor just ahead of TCU in overall ratings. And it mentioned the TCU-ISU 2014 game and pointedly mentioned the Clones' 2-10 record while pointedly not mentioning that TCU was then ranked 3rd in the nation and, CFP Committee deliberations aside, seemed poised to make the first playoff ever. That's kind of typical for what is, in essence, a Baylor article.
Moreover, in comparing Big 12 ratings to just the AAC, it has sort of a kiddie pool aspect to it which would be better served by a comparison against, say, Pac 12 schools. But it's still the best of these sorts of articles yet.