I spend 8 hours a day staring at a computer screen, why would I want to do it on my off time?
Seriously, good conversation, good books (or even mediocre books from a bookswap at a marina), watching a sunset. Very infrequently, less than once a month, we'll watch a DVD on laptop.
We didn't have a tv at home for the last 5 years we lived on land, so never missed it when we moved aboard. In fact I wonder how anyone has time?