Acknowledgement section I am tempted to thank the cast of a television show in my acknowledgement section of my thesis. Has anyone else done this?...the show was literally the only thing I would watch while writing...and I really don't have a lot of other people to thank.
Acknowledgement section is actually a place where a researcher specifies the contributions of other people/organizations or even the TV show like in your case, to the research. However, it mostly transformed into one/two page to thank first your advisor/coadvisor than colleagues than your friends than family and if there is, your significant other. 

I really don't understand why it evolved to that but still, you can really write whatever you want there.

"I want to acknowledge "" TV show as their performance greatly helped me to write and tidy up my thesis". I would write like this.