Based on OP's description (and my own similar experiments) all variables are identical except for the specific show being evaluated. Same TV, speakers, service provider, viewing/listening location AND the same ears. And I have also experienced and read other's complain of this exact phenomenon. This topic was somewhat famously discussed a while back regarding Christopher Nolan movies as an example.

However, as for using the word "modern" you might be right. I was unaware that word existed until my 31st birthday when I was finally granted access to a whole book of unlocked words and phrases I was allowed to learn and begin using. So many fun words became available. Almost like getting a new DLC package.