I had the amusing experience of seeing a movie at a theatre and wanting to use the "go back 10 seconds" button when some dialog wasn't clear.

I had the same thing happen when I got my DishPlayer (it has a seven secon jumpback and 30 second jump ahead). I even envisioned the little symbol popping up in the upper right corner.

Of course I do have this control with about anything now from the couch. The ATI Remote Wonder lets me easially get around shows I have archived without using a mouse.