Tivo

I was at a friend's.
Show still on, I went to bed.
Tivo works online.

One of my favorite features of Tivo is that I can set shows to record over the internet. Recently, I was in Chicago, about two hours from home, and found an interesting documentary debunking 9/11 conspiracy theories. I got into it, but started falling asleep halfway through.

I logged on to my Tivo account, told it to record the rest of the show, and went to bed. A few days later in Wisconsin, I watched the rest of the show on my home TV where Tivo had recorded the end.