When Friends or Firefly were on, for example, I was watching a lot of TV (like you) because at that stage of my life I was settling into a long-term relationship (early twenties) and we found those to be mutually enjoyable things to watch. Movie watching tends to fall off around the time people start having kids. So far, on my friends-and-family (kids and grandparents alike) polls, it's pretty accurate.

Thanks again for answering :) I may just post my quick and dirty hack when I'm through playing with it.