I think the thing we see is that as people are using video games more they tend to watch passive TV a bit less. And so using the PC for the Internet playing video games is starting to cut into the rather unbelievable amount of time people spend watching TV.
If it's not some daring dangerous affair it's just not interesting or so it seems. So here you have two people - a famous American iconic couple - who actually like each other sexually in marriage. Imagine.